Rewarding the Wrong Traits: How Organizations Keep Elevating Toxic Managers and What Structured Assessment Can Do About It

The Manager Who Delivers Numbers but Destroys People

Every organization has encountered this profile: the manager who consistently hits targets, impresses senior leadership in quarterly reviews, and projects confidence in every meeting. On paper, the case for their next promotion is compelling. Off paper — in the hallways, in exit interviews, in the quiet resignation letters — a different story emerges.

High turnover on their team. Disengaged direct reports. Collaborative breakdowns that slow cross-functional work. These are not coincidences. They are symptoms of a leadership style that produces short-term numbers while quietly depleting the human capital required to sustain them.

The troubling reality is that this pattern does not simply occur once. In many US enterprises, it repeats — the same type of manager, the same downstream damage, the same organizational cost — because the promotion process that created the problem remains unchanged.

Why Subjective Promotion Decisions Fail Organizations

Promotion decisions in most organizations are still heavily influenced by informal judgment. A senior leader advocates for a high-performing individual contributor. A regional VP recalls a strong quarter. A hiring committee defaults to the candidate with the most visible wins. These inputs are not meaningless, but they are dangerously incomplete.

When organizations rely on subjective impressions and output-based metrics alone, they are effectively measuring only what a candidate has produced — not how they produced it, and certainly not what their presence does to the people working beneath them. The interpersonal dimension of management, which research consistently identifies as the primary driver of employee engagement and voluntary turnover, receives little to no formal scrutiny.

This gap is not accidental. Measuring interpersonal skill is harder than measuring revenue. Quantifying the effect a manager's communication style has on team psychological safety requires deliberate methodology. Most organizations simply have not built that methodology into their promotion infrastructure.

The Compounding Cost of Promoting Problem Managers

The financial consequences of this oversight are significant and tend to escalate with each promotion tier. A toxic manager at the team lead level may drive out one or two high performers. That same individual, promoted to director, now influences multiple teams, shapes hiring decisions, and sets behavioral norms for an entire department.

Consider the layered costs: voluntary turnover among direct reports, reduced productivity during transition periods, the time and expense of recruiting replacements, and the erosion of institutional knowledge that walks out with every departing employee. Add to this the downstream effect on the managers that report to the promoted individual — leaders who model dysfunctional behavior reproduce it, often unconsciously, throughout the organizational hierarchy.

A 2023 Gallup analysis estimated that managers account for at least 70 percent of variance in employee engagement scores. When organizations promote without evaluating management potential rigorously, they are not making a neutral decision. They are making an active investment in a leadership style that will either amplify or diminish the performance of every person it touches.

What Assessment Reveals That Output Metrics Miss

Structured behavioral assessment, applied within the promotion evaluation cycle, surfaces dimensions of a candidate's leadership profile that performance reviews simply cannot capture.

Behavioral interviews using competency-based frameworks probe how candidates have historically navigated conflict, delivered difficult feedback, and supported team members through failure. Unlike open-ended conversations, competency-based interviews are scored against defined behavioral anchors, reducing the influence of interpersonal bias and ensuring consistency across candidates.

360-degree feedback instruments, when administered rigorously, aggregate perspectives from direct reports, peers, and cross-functional partners. The resulting data frequently reveals a pattern that is invisible from above: a candidate who manages up effectively while managing down destructively. This disconnect — performing well for senior leaders while creating friction for those who report to them — is one of the clearest predictors of toxic management behavior post-promotion.

Psychometric and situational judgment assessments evaluate how candidates are likely to respond under pressure, how they prioritize competing demands, and whether their default behavioral tendencies align with the interpersonal requirements of the role they are being considered for. These instruments do not replace judgment — they inform it.

Building the Pre-Promotion Assessment Framework

Organizations serious about breaking the cycle of toxic promotion need to embed assessment into the promotion process as a standard practice, not an optional supplement. The following framework provides a practical starting point.

Define the leadership competencies the role actually requires. Not generic leadership traits, but the specific behaviors — conflict resolution, team development, psychological safety creation, transparent communication — that the organization needs from leaders at this level, in this context.

Establish a multi-source data collection protocol. No single assessment instrument provides a complete picture. A combination of structured behavioral interviews, 360-degree input, and validated psychometric tools produces a far more reliable profile than any one method alone.

Create scoring criteria that weight interpersonal competencies alongside technical and output-based performance. If the evaluation rubric assigns 90 percent of its weight to revenue or project completion metrics, the resulting decision will reflect those weights. Interpersonal leadership capacity must be measured with the same rigor as operational results.

Train promotion decision-makers to interpret assessment data. Assessment tools generate insight only when the people reviewing them understand what the data indicates and how to apply it. Decision-makers who lack this training will default to familiar heuristics — which returns the process to the same subjective patterns that created the problem in the first place.

Establish a feedback loop between post-promotion team outcomes and pre-promotion assessment profiles. Over time, this data allows organizations to refine their assessment criteria based on real-world leadership performance, building a continuously improving predictive model.

Assessment as Organizational Protection

It is worth reframing how organizations think about pre-promotion assessment. It is not a gatekeeping mechanism designed to block ambitious employees. It is a protective system — one that protects teams from managers who will harm them, protects the organization from the retention and productivity losses that follow, and, critically, protects candidates themselves from being placed in roles where they are likely to fail and cause collateral damage in the process.

The manager who is promoted into toxicity is rarely malicious. More often, they are a skilled individual contributor who was never adequately prepared for the interpersonal demands of leadership — and whose deficits were never identified because no one formally looked for them.

Structured assessment changes that equation. It ensures that the decision to promote is based on the full picture of who a candidate is as a leader, not merely what they have produced as an individual.

Breaking the Cycle Requires Changing the Process

Organizations that continue to promote based on output alone will continue to produce the same outcomes: capable individual contributors elevated into leadership roles they are not equipped for, teams that deteriorate under their management, and senior leaders who are genuinely puzzled by why performance is declining in a department they just strengthened with a promotion.

The cycle persists not because organizations lack the will to change it, but because they lack the infrastructure to do so. That infrastructure — rigorous, multi-method, competency-aligned assessment — is not aspirational. It is available, proven, and deployable within existing promotion workflows.

The question is no longer whether organizations can afford to implement structured pre-promotion assessment. Given the compounding costs of promoting the wrong managers, the more accurate question is whether they can afford not to.