A foreman gets promoted to superintendent. A site supervisor gets handed a project manager title. On paper it’s recognition and a reward for years of solid work on the tools. In practice, according to Manja Horner, it’s often the moment a company sets itself and that individual up for disappointment and profitability damage.A New Job Title Isn’t a New Skill Set

Every promotion in the trades tends to work the same way. Someone proves themselves excellent at the work itself, and the reward is a brand new job with a brand new title, new responsibilities, and almost none of the training required to actually succeed in it. Manja Horner points out that this pattern repeats at every level, from foreman to superintendent to site supervisor to manager, and the industry rarely recognizes whether the person being promoted has the interest in managing people, the planning and resourcing skills to do this new job, or if they’ve ever been taught how to lead people.

That gap isn’t a minor oversight. It’s the difference between a promotion that strengthens a company and one that starts costing it people, money, and safety.

The Damage Shows Up on the Front Line

Manja Horner is direct about where this plays out: at the front line, under the direct oversight of the very supervisors who were promoted without leadership training. Rework and mistakes happen there. Toxic culture takes root there. Apprenticeship training and skills verification live or die there. Employee turnover and retention happens there. Safety issues surface there first. And smooth coordination with subcontractors on site depends almost entirely on whether the supervisor running that site knows how to lead, not just step in to take over the tools.

Supervisors are expected to plan and resource a site, manage people, resolve conflict, communicate expectations clearly, and hold a crew together and accountable under pressure, without ever having been taught how to do any of it. A supervisor who isn’t trained for success can actively make things worse than if the promotion hadn’t happened at all.

People Don’t Quit Companies, They Quit Managers

One of the sharper points Manja Horner raises is who’s actually driving attrition in the trades. It’s rarely the employer itself that pushes good workers out the door. It’s the direct manager. A talented tradesperson can tolerate a lot from a company: tight margins, demanding schedules, imperfect conditions. What they won’t tolerate for long is a supervisor who was thrown into a leadership role unprepared and is now managing people the same way they were managed, or worse, not managing them at all.

That turnover is expensive in an industry that can least afford to lose A players right now. Every worker who walks because of a bad supervisor is someone who now has to be replaced from an already shrinking talent pool, retrained from scratch, and re-onboarded into a culture that just proved it doesn’t invest in its leaders. We’ve seen employee turnover rates in manufacturing and the trades above 35% – higher than many other industries.

The Fix Is Preparing Better

Manja Horner’s position isn’t that companies should stop promoting from within. Promoting from the tools, rewarding great staff with career opportunities is a great idea. These are the people who understand the work and have earned credibility with their crews. The failure is in what happens, or doesn’t happen, during the succession and promotion. Without leadership development built into that transition, companies are handing enormous responsibility to people they haven’t been upskilled to carry it out.

The companies that get this right are treating leadership capability as something that has to be built deliberately, before the promotion causes damage. A poorly equipped supervisor will feel incompetent and will regret the new job title. This means training supervisors in communication, conflict resolution, and people management with the same seriousness the industry already applies to technical skill and safety certification.

A Warning Worth Taking Seriously

The real danger Manja Horner is naming is good intentions colliding with an industry-wide blind spot. Companies are promoting good tradespeople into leadership roles and assuming the leadership will simply develop. It doesn’t. And until leadership skills are taken seriously the front line will keep destroying profit margin, in turnover, in rework, in safety, and in culture, one unprepared promotion at a time.