Leadership
You promoted your best salesperson
Why the accidental manager problem is costing your business more than you think - and what to do about it before it derails your best people.
LEADERSHIP DEVELOPMENT · MAY 2026 · 8 MIN READ
You promoted your best salesperson.
Now what?
Why the accidental manager problem is costing your business more than you think - and what to do about it before it derails your best people.
Jill Edwards · Fractional CHRO & Leadership Coach · XP Consulting Group
It’s one of the most common decisions in business and one of the most consequential. Your top performer is brilliant at their job, they’re respected by their colleagues, and they’ve earned a step up. So you promote them. It feels like the right call. And then, quietly, things start to unravel.
The team that ran smoothly under your watch starts to feel unsettled. Your new manager is working harder than ever but producing less. Complaints start filtering up. The person you promoted, once confident and energised, looks like they’re drowning. And the business loses its best individual contributor without gaining an effective leader.
This is the accidental manager problem. And in my experience working with SMEs across Australia, it’s one of the most common, most costly, and most avoidable people challenges businesses face.
Why we keep making this mistake
The logic seems sound on the surface: promote the person who performs best. They know the work, they understand the clients, and the team respects them. But this reasoning confuses two fundamentally different skill sets and the gap between them is wider than most leaders realise.
Being exceptional at a technical or functional role, whether that’s sales, operations, finance, or any other discipline, requires a very different set of capabilities than leading a team of people. The skills that made someone your best salesperson (competitive drive, individual accountability, the ability to close) can actively work against them as a manager (where the goal is to develop others, share credit, and build collective capability).
“ The best individual contributor and the best manager are rarely the same person - not because of talent, but because the job requires something entirely different. |
Yet most SMEs continue to use performance as the primary criteria for promotion, often because it’s the most visible signal available, and because there’s no structured alternative. The result is a business that loses its best performer and gains an unprepared manager in one move.
82%of managers receive no formal training before taking on a leadership role | 57%of employees cite their manager as the primary reason they left | $15K+average cost of replacing a mid-level employee who leaves due to poor management |
What actually goes wrong and why it’s not the person’s fault
When an accidental manager struggles, the instinct is often to question the promotion decision itself, to wonder whether they were ever the right fit. But in most cases, that’s the wrong diagnosis.
The problem isn’t the person. The problem is that we promoted them without preparing them, supported them without equipping them, and then held them accountable for outcomes they had no framework to achieve.
Here’s what typically happens in the first six to twelve months:
1 | They default to doing, not leadingBecause they were promoted for their technical expertise, their natural instinct when things get difficult is to step in and do the work themselves. It feels faster and safer. But every time they do this, they undermine their team’s development and become the bottleneck, the very person everything runs through, and the first person to burn out. |
2 | They struggle to have difficult conversationsManaging peers, people who were once colleagues and friends - is genuinely hard. Suddenly they need to address performance issues, give corrective feedback, and hold people accountable. Most accidental managers have never been shown how to do this, so they avoid it. Problems that should be addressed in week two become entrenched by month six. |
3 | They measure themselves by the wrong thingsHigh-performing individual contributors are used to personal output being the measure of success. As a manager, their output is their team’s performance, a much less immediate, much less tangible feedback loop. Without guidance, many new managers continue chasing personal wins rather than building team capability, which is precisely the opposite of what the role requires. |
4 | They lose confidence - and it showsThe combination of unclear expectations, no support structure, and a team that senses their uncertainty creates a self-reinforcing confidence spiral. The new manager second-guesses decisions, over-explains themselves, or swings to the opposite extreme and becomes overly directive in an attempt to assert authority. The team notices, and trust erodes. |
5 | Everything escalates back to the business ownerInstead of the promotion reducing the founder’s involvement in day-to-day people issues, it creates a new layer of complexity. The manager can’t resolve team conflicts, doesn’t know how to handle a performance concern, and isn’t sure what decisions are theirs to make. The CEO ends up managing both the team and the manager, exactly the opposite of the intended outcome. |
The signals that something has gone wrong
The accidental manager problem often develops gradually, which is part of what makes it so damaging. By the time it’s obvious, months of productivity, engagement, and team trust have already been eroded. These are the early warning signs to watch for:
□ Team members are going around the manager to raise issues directly with you
□ The manager is consistently the last to leave and first to arrive, working harder than ever but not producing better results
□ Performance conversations aren’t happening, or are happening so infrequently that problems are only addressed when they’re already serious
□ Team engagement or morale has visibly shifted since the promotion
□ The manager gives vague, non-specific feedback (“you just need to be better at X”) rather than addressing behaviours directly
□ You’re noticing increased conflict or tension within the team, particularly between the manager and former peers
□ The manager seems to have lost the confidence and energy that made them stand out in their previous role
If you’re nodding at more than two or three of these, the situation is recoverable, but it needs deliberate attention now, not a “wait and see” approach.
What good looks like - the mindset shifts that matter most
Supporting an accidental manager isn’t about a one-day training course or a new performance framework. It’s about helping them internalise a fundamentally different way of thinking about their job. In my experience, the leaders who make the transition successfully all go through some version of the same five shifts.
Shift 1 From doing to enabling |
OLD MINDSET “It’s faster if I just do it myself.” THE SHIFT Your job is to build a team that can do it without you. Every time you step in and solve the problem yourself, you deny someone the chance to develop and you signal that you don’t trust them to get it right. The measure of a great manager isn’t personal output; it’s the collective output of the people they lead. |
Shift 2 From telling to asking |
OLD MINDSET “I know the answer - I’ll just tell them what to do.” THE SHIFT The most powerful question in a manager’s toolkit is: “What do you think?” - even when you already know the answer. Coaching through questions builds ownership, develops capability, and creates a team that thinks for itself rather than waiting to be told. Directive management creates dependency; coaching creates resilience. |
Shift 3 From avoiding discomfort to leaning into it |
OLD MINDSET “I’ll give it another month and see if it improves.” THE SHIFT Difficult conversations left too long become impossible conversations. A performance concern that takes five minutes to address in week two will take five months of stress, risk, and eroded team morale to address in month six. Acting early - with specificity, care and clarity, is one of the most important habits a new manager can build. |
Shift 4 From individual achievement to team success |
OLD MINDSET “My results are what get noticed.” THE SHIFT As a manager, your performance is entirely reflected in your team’s performance. The best thing you can do for your own career is make your people brilliant. This is a profound psychological shift for high achievers who are used to personal contribution being the primary currency of success. |
Shift 5 From reacting to conditions to creating them |
OLD MINDSET “I deal with problems when they come up.” THE SHIFT Great managers don’t just respond to the environment, they actively shape it. They create the conditions for their team to do their best work: clarity of expectations, psychological safety, regular feedback, and space to raise concerns early. Culture, ultimately, is what you tolerate and reward every single day. |
What you can do right now: a practical framework
Before the promotion
The biggest investment you can make in a new manager’s success happens before they’re in the role. Consider these three things:
| Be honest about the job changeA promotion into management isn’t a bigger version of the job they currently do, it’s a fundamentally different job. Have an explicit conversation about what the role actually requires, what they’ll need to develop, and what success looks like in the first 90 days. Many accidental managers fail simply because nobody told them what the job actually was. |
| Assess for leadership potential, not just past performanceThe two are not the same. Before promoting someone into a people leadership role, look for signals of leadership potential: Are they someone others naturally come to for guidance? Do they show curiosity about how to develop others? Can they hold a difficult conversation? Can they think beyond their own work to the broader team’s outcomes? |
| Consider whether management is actually what they wantSome of your best people are brilliant individual contributors who genuinely don’t want to manage others, they just feel like they have to in order to progress. Creating technical career pathways that don’t require people management can retain exceptional talent and avoid forcing them into a role that diminishes both them and you. |
In the first 90 days
The first three months in a new management role are the most critical and the most commonly neglected. Here’s what actually moves the needle:
1 | Set crystal-clear expectationsWrite down what the role is responsible for, what good looks like at 30, 60, and 90 days, and what decisions the new manager owns versus what they need to escalate. Ambiguity is the enemy of new managers. The more specific you can be about what you’re looking for, the more confidently they can operate. |
2 | Give them a regular, structured check-in with youNot a performance review, a genuine coaching conversation. What’s working? What’s hard? Where are they stuck? What do they need from you? This weekly or fortnightly rhythm signals that you’re invested in their success, and creates a safe space for problems to surface before they escalate. |
3 | Teach them one or two frameworks earlyNew managers don’t need a management degree, they need practical tools they can use on Monday morning. Something as simple as a feedback model (like SBI: Situation–Behaviour–Impact) or a structured 1:1 approach gives them a framework to operate from, which dramatically reduces the anxiety of “how do I handle this?” moments. |
4 | Address the team transition explicitlyIf your new manager has been promoted from within the team they now lead, acknowledge the dynamic directly, both with them and with the team. The shift from peer to manager is genuinely awkward for everyone, and pretending it isn’t doesn’t make it go away. A transparent conversation about how the relationship will work creates far less friction than leaving the team to figure it out themselves. |
Ongoing support
The most overlooked phase of manager development is what happens after the initial bedding-in period. Six months in, a new manager no longer feels “new” - but they may still be operating with significant gaps that have simply become normalised. Keep investing in:
□ Regular feedback upward - ask their direct reports (through a safe, structured channel) how the team is experiencing their leadership
□ Exposure to other leaders - peer learning, networks, and mentoring from more experienced managers accelerates development faster than almost anything else
□ Leadership coaching - particularly for senior managers dealing with complex team dynamics, change, or underperformance, a skilled external coach provides independent perspective
□ Deliberate stretch opportunities - giving managers responsibility for projects outside their comfort zone, with appropriate support, accelerates development in ways that day-to-day management simply doesn’t
A final thought: the cost of doing nothing
I’ve worked with many SME founders who know their managers are struggling but are waiting for things to improve on their own. They’re hoping the situation resolves itself, or they’re not sure what to do, or they’re worried that intervening will make things worse.
In my experience, things rarely improve without deliberate action. What does happen consistently, is that the problem compounds. The manager becomes more entrenched in unhelpful patterns. The team loses trust. High performers quietly start looking elsewhere. And the founder spends increasing amounts of time managing both the team and the manager, which is precisely the opposite of why the promotion was made in the first place.
The good news is that most accidental managers are entirely recoverable and with the right support, many become exceptional leaders. What they need isn’t a fresh start. They need clarity about what the job actually requires, practical tools for the situations they’re facing, and a leader who is genuinely invested in their success.
“Investing in your managers isn’t a cost - it’s the highest-leverage thing you can do for the performance, culture, and growth of your business. |
If you can get your managers right, almost everything else in your business gets easier. The team performs better, people stay longer, problems surface earlier, and you get your time back. That’s not a nice-to-have. For any SME with ambitions to grow, it’s essential.
KEY TAKEAWAYS
1. Promoting your best performer into management without preparation is one of the most common and costly mistakes in SMEs.
2. The accidental manager problem is rarely about the individual - it’s about a failure to prepare, support, and equip them for a fundamentally different role.
3. The five mindset shifts (doing → enabling, telling → asking, avoiding → leaning in, individual → team, reacting → creating) are the foundation of effective leadership.
4. Practical tools, clear expectations, and regular structured support in the first 90 days make the difference between a manager who thrives and one who quietly struggles.
5. Investing in your managers is the highest-leverage thing you can do for your business - full stop.
WORK WITH ME
Is this showing up in your business?
Whether you have managers who are struggling, a promotion decision coming up, or you simply want to build a stronger leadership culture before it becomes a problem - let’s talk. A free 30-minute conversation is a good place to start.
Book a free discovery call: calendly.com/jill-xpconsulting/30min
XP Consulting Group · Jill Edwards · Fractional CHRO & Leadership Coach
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