Most fail in week six. Here's the pattern.
We've coached 200 new VPs through their first 90 days. Most of the failure cases follow the same shape: a strong first three weeks, a confident fourth week, and a quiet collapse around week six when the new operator runs out of inherited goodwill.
The fix is unglamorous. Pick three measurable wins for the first quarter. Talk to twenty people in the first three weeks. Resist the urge to restructure before you've earned the right to.