A new executive is judged on decisions made during their first months, using information the organisation has not given them. Much of what constrains them was agreed before they arrived and written down nowhere.
Informal commitments outnumber recorded ones
Promises about promotions, project sequencing, budget and territory are frequently made verbally and remembered precisely by the person who received them.
None appear in a handover document, because the departing leader may not consider them decisions and may not be present to be asked.
The new leader discovers them by breaking one, at which point the reaction is disproportionate to anything they can see in the record.
The handover is written by an interested party
Where a predecessor is available, their account is shaped by how they wish their tenure to be understood, and by which problems they would rather not explain.
Where they are not available, the account comes from the team, who have their own preferences about what the new leader should prioritise.
Neither source is dishonest, and neither is neutral, so a briefing assembled from either alone will be missing the same things.
Early decisions are made with the least information
Pressure to demonstrate impact peaks precisely when understanding is lowest, which is why new leaders so often reorganise or cut something quickly.
Those actions are visible and they are also the ones most likely to disturb arrangements holding something together for reasons not yet apparent.
Deferring structural change until the constraints are mapped costs some early credibility and avoids a category of error that is expensive to reverse.
Existing staff manage the flow of information
The team decides what reaches a new leader first, and what reaches them first shapes their model of the situation for a long time afterwards.
People with grievances tend to arrive early, while those content with the current arrangement have less reason to seek a meeting.
A leader who only takes the meetings offered will therefore acquire a systematically skewed picture and may act on it before it corrects.
Mapping obligations is a specific task
Asking each direct report what they have been promised, by whom and when, is an uncomfortable set of conversations that produces the missing information directly.
It also establishes early that commitments will be honoured or explicitly renegotiated rather than quietly dropped, which is what determines whether people continue to disclose them.
The alternative is learning the same map through a sequence of avoidable conflicts, each of which is recorded as a judgement failure by the person who had the least chance of avoiding it.