Why early-stage managers are your most critical business investment
Your best salesperson becomes sales manager. Your top designer now leads the design team. Your highest-billing consultant gets promoted to Practice Lead. That's the “logic” and it's how 82% of UK managers are made*: promoted for their technical excellence in their work, not their capability to lead others doing it.
2.4 million people in the UK are what the Chartered Management Institute calls "accidental managers." Globally, less than half of all managers have received any formal training. The assumption driving this is simple: management skills develop naturally through career progression. You do well, you get promoted, and somehow the ability to lead follows.
The capability gap
The skills that earn the promotion are rarely the skills the role actually requires. Most managers got there by being the best at doing the work. But now the work has changed and it's no longer just about their output, it's about everyone else's.
That means maintaining enough domain expertise to guide the work, while developing an entirely different set of abilities: communicating clearly, navigating conflict, giving feedback that changes behaviour, and translating strategy into priorities people can act on.
Without deliberate development, most managers never make that shift. And the cost is visible everywhere. Disengaged teams, preventable turnover, declining performance. Across UK businesses, the productivity loss is estimated at £84bn a year*.
Where the cost concentrates
Most organisations wait an average of 9 years before putting managers through any development programme. By then, they've been in role for at least 3 years. Remediation at that point costs a lot more than early intervention would have, because behaviours have solidified and teams have adapted to poor habits, all of which is hard to unlearn.
The window that gets missed is the earliest stage of management. First-time managers, frontline managers still doing individual contributor work while learning to lead, people who've been promoted from within and are now managing former peers. This is the group most organisations overlook entirely.
Why early-stage managers matter most
60% of early-stage managers underperform during this window. Our research shows this group can typically create a 30-40% productivity drag across their teams. The cost is distributed across four areas: lost productivity from unclear direction and reactive management, turnover, stress-related absence and grievances. For a 500-person organisation with ~60 managers (of which 50% are ineffective), that drag can translate to anywhere between £3-4m lost annually.
Yet this is precisely where intervention delivers the highest return. Not because they're struggling the most, but because their behaviours haven't solidified yet. They know they have knowledge gaps. They're open to feedback. They haven't built defensive mechanisms. The self-awareness exists. What's missing is structured support.
The multiplier effect
Early-stage managers are your future senior leaders. A manager who never learns to give clear feedback doesn't suddenly develop that skill when promoted to Head of Department. They hire people who manage the same way. Five years later, one untrained manager has shaped an entire function's leadership culture.
Now imagine that same manager given the right support from day one. They learn to handle conflict early and model it for others. When they're promoted, they hire and develop people who do the same.
This is what organisations miss. Early-stage managers aren't developing in isolation. What they learn or don't learn becomes the standard. How you develop this group collectively is what shapes your leadership culture. Delay that investment and you're not just tolerating individual underperformance; you're embedding it as the norm.
These managers are forming habits right now. In the feedback they give, the conflicts they navigate or avoid, the priorities they set. The question isn't whether to invest in their development. It's whether you can afford not to. This is what we're solving at Vokser.
Vokser is the manager development platform that develops early-stage managers in the flow of work, mapping capability, identifying gaps, and building personalised development journeys at the point where intervention delivers the highest return.
Our proprietary behavioural framework accelerates time-to-competence for first-time managers, frontline leaders, and newly promoted managers before poor habits solidify and the cost multiplies. If you're ready to turn your early-stage managers into a competitive advantage rather than a £3-4m productivity drain, we'd like to talk.
Sources:
CMI Article: A management manifesto for the UK: fixing the £84bn productivity gap