Picture your strongest performer. The one who hits every target, knows the work inside out, and never lets the team down. When a management role opens up, they’re the obvious choice. So you promote them. It feels like a reward, and it feels like a safe bet.
But here’s what often happens next. The skills that made them brilliant at the job aren’t the skills they need to lead other people through it. Suddenly they’re responsible for difficult conversations, performance issues, motivation, and morale, with no preparation for any of it. They’re what the Chartered Management Institute calls an accidental manager, and they’re everywhere.
The scale of the problem
The CMI, working with YouGov, surveyed 4,500 workers and managers across the UK. What they found was striking. 82% of people who enter management roles do so without any formal management or leadership training. More than half, 52%, hold no management or leadership qualification at all. And it isn’t just a junior level issue. The research found that 26% of senior leaders and managers have never had any formal management training either.
This isn’t a new problem, but it’s a persistent one. According to the OECD, there are around 2.4 million accidental managers operating in the UK. The cost of poor management is estimated at roughly £84 billion a year in lost productivity. That’s not a rounding error. It’s a structural weakness running right through the way British organisations develop their people.
Why it matters more than it looks
It’s tempting to treat management training as a nice to have, something you get to once the more pressing work is done. The evidence says otherwise, because the cost of getting it wrong lands squarely on your people.
The CMI research found that one in three workers have left a job because of poor management or a negative workplace culture. Think about what that means in practice. Every time a good employee walks out the door because of how they were managed, you lose their knowledge, their relationships, and the cost of finding and training a replacement. The people who stay don’t escape the effect either. They feel less motivated, less valued, and less satisfied when they’re led by someone who was never shown how to lead.
The frustrating part is that the manager usually isn’t to blame. They were set up to struggle. They were handed responsibility for other people’s working lives and left to figure it out alone, often while still carrying much of their old workload. Self doubt, inconsistency, and burnout follow naturally from that, and none of it reflects their potential.
Confidence and competence aren't the same thing
One of the most useful ideas for any new manager to understand early is that confidence and competence are not the same. You can be highly capable and still doubt yourself, and you can appear self assured while lacking the skills to back it up. The goal of good development isn’t to manufacture confidence. It’s to build real capability, so that confidence has something solid to grow from.
That’s why the answer to the accidental manager problem isn’t a pep talk or a single away day. It’s structured development that gives people genuine skills in the things management actually demands. Communication. Handling difficult conversations. Understanding different leadership styles. Managing change, absence, and performance. Reading and responding to the people in front of you rather than guessing.
Finding the right kind of development
Once an organisation spots the gap, the next question is what to do about it. There’s no single right answer, and that’s a good thing.
For many people, an accredited qualification is the ideal route. Programmes like the ILM and IWFM qualifications give managers recognised credentials, a structured grounding in leadership and management, and a clear marker of professional development they carry with them throughout their careers. If your people would benefit from formal recognition and a proven curriculum, that’s a strong place to start.
For other organisations, the need is more specific. Your managers face your particular challenges, in your culture, with your people. Sometimes the most useful thing is a programme shaped entirely around those situations, focusing on the exact scenarios your teams are dealing with day to day. That’s where bespoke training earns its place.
At Learnmore, we offer both, and we’ll help you work out which fits. Our bespoke programmes start with a discovery call to understand your goals and where your people need to develop. We design content around those needs, refine it with you until it’s right, then deliver it to your teams and review the outcomes together afterwards. Understanding accidental managers is one of the topics we’re asked for most, sitting alongside difficult conversations, change management, project management, time management, and women in leadership.
We’ve delivered bespoke programmes for organisations including Mitie, Go Ahead London, Southeastern, Fuller’s, and Impact Food Group, and our trainers bring more than 15 years of real-world experience into the room. Whichever route you choose, the aim is the same. Practical learning that sticks and changes how people lead, not theory that’s forgotten by the following week.
The return on getting it right
There’s a strong financial case alongside the human one. A bespoke programme with us starts from £3,800 + VAT, with the final figure depending on what you need. And the payback tends to come quickly. According to Harris Interactive research carried out for the ILM, the majority of employers see a return on their investment within a year of investing in leadership development.
Set that against the cost of doing nothing, the lost productivity, the resignations, the knock-on effect on the teams left behind, and the decision starts to look fairly clear.
A problem worth solving
The accidental manager problem is widespread, but it’s also one of the more fixable challenges an organisation faces. The 82% figure isn’t a verdict on the quality of your people. It’s a reflection of a system that has long promoted on technical skill and assumed leadership would follow. It doesn’t follow automatically. It’s learned.
If you’ve got talented people leading teams who were never given the tools to do it well, the good news is that this is solvable. Whether the answer is an accredited qualification, a tailored programme, or a mix of both, the first step is simply a conversation about what your managers actually need. From there, the path to better, more confident leadership is a lot shorter than you might expect.
Aarrange a call about your organisation’s options