Knowledge transfer, migrations, and what's lost when ownership moves between people.
Operations
A production system fails outside business hours. The fix requires understanding a component integrated under pressure and never properly documented. The on-call engineer pays the cost of decisions they never made.
Handover
A long-tenured person leaves. Standard offboarding happens. Months later, decisions take longer and feel less confident. The thing that left was never written down — because nobody knew it was there.
Handover
A critical transition was planned, discussed, and assumed to be in progress. It wasn't. Each person had a reasonable model in which someone else had it covered. The pattern is what happens when ownership lives in the gaps.