Leader development built on published research

Ninety days

Jack Zenger published a figure in Harvard Business Review in 2012: the average supervisor manages people for about ten years before anyone trains them. I have not found a more recent number that is lower. A 2011 CareerBuilder survey, cited by the Center for Creative Leadership, found that 58 percent of first-time managers got no training at all. They got a team and no instruction.

So most of them learn the job slowly. Some never learn it. The Corporate Executive Board estimates that about half of executives fail within eighteen months, and SHRM still uses that figure. McKinsey measured the opposite case. A leader who succeeds leads a team 90 percent more likely to meet its three-year goals. That team is also 13 percent less likely to lose people. When a leader fails, engagement on the team runs about 20 percent lower.

Everyone reporting to that manager pays part of the cost. Gallup attributes at least 70 percent of the difference in engagement between business units to the manager. It set out that figure in its 2015 State of the American Manager report. It draws on a database of more than two and a half million work units built up over two decades. DDI surveyed employees in 2019. Fifty-seven percent had left a job because of a boss.

What they struggle with, in order

What new managers struggle with is well documented, and the ranking is more useful than the list. The Center for Creative Leadership studied 295 first-time managers. Their most common challenge was adjusting to managing people and exercising authority, chosen by 59 percent. Managing themselves came second at 46 percent. Getting the team to produce results came third at 43. Politics and stakeholders came fourth at 34. Delegation was chosen by 18 percent and conflict by 15.

Most programs teach a fixed syllabus in the order it was written. This one follows the ranking. The first six weeks go to the four things a new manager is most likely to be struggling with now.

Granted, these are self-reported, and people report what they notice. Still, I think the ranking is a sequence, and the low numbers at the bottom are the useful part. The job now gets done through other people. A manager who has not accepted that has not reached the point of struggling with how to hand work over. Delegation ranks low because most of them are not there yet. Assessment data supports that. DDI evaluated more than 70,000 manager candidates for its 2025 Global Leadership Forecast. Nineteen percent had strong delegation skills. Separate DDI research in 2024 found 49 percent of emerging leaders struggling with conflict.

One number the research does not supply is how long it takes to become competent. Transition programs usually run six to nine months. Failure is measured at eighteen. Neither is a measure of competence. I could not find a published one that does. But the job starts on the first day whether or not anyone is helping, and most organizations start helping about a decade late.

Eight classes, then four weeks of practice

This program runs ninety days. Eight classes of ninety minutes, one a week, then four weeks of individual coaching and assessment sessions. It starts where the CCL ranking starts. Each manager works out what their job requires of them. A manager who cannot answer that cannot use the six classes that follow. Those six follow the order the research suggests. They cover trust and listening, expectations and feedback, delegation with authority, decisions on incomplete information, conflict and influence, and failure and workload. The last session is each manager’s own current problem. The other managers examine it.

Why the schedule is shaped this way

The schedule comes from the research on what makes training work. Lacerenza, Reyes, Marlow, Joseph and Salas pooled hundreds of leadership training studies. The Journal of Applied Psychology published the meta-analysis in 2017. Four design choices produced larger effects: assessment before the training, practice over lecture, feedback while the program runs, and sessions spread out over time. A session every week for twelve weeks does all four. A two-day offsite does none.

Every session ends with one thing the manager does at work before the next one. Twelve sessions, twelve applications, and a review on day 90. That is the published design of the program, and not a measured outcome.

What each manager keeps

Two books and their field workbooks, issued at kickoff. The workbooks carry the between-session assignments, so the reading and the practice stay on the same page. Right Leader, Wrong Arena explains why a manager with a good record gets bad reviews after the job changes. It is the text for the arena and trait work in weeks 1 and 2. The 12 Ordeals of Leadership covers twelve things that break new managers and what to do about each one, across weeks 2 to 8.

Each manager keeps the books. The method stays with you when the instructor leaves at the end of ninety days. You can hand the same four volumes to the next manager you promote.

The promise is narrow

I would rather keep it that way. A manager who finishes can state what their job requires and has practiced three behaviors on real work. Their own supervisor watched them do it. Call that competence, not mastery. That is about ten years earlier than most managers get it.