Your first 90 days as CTO or VP Engineering by Will Larson
In my own little corner of the world, I'm preparing for a new Director of Technology. Because of the popularity of The First 90 Days, I assume that any new leader is running a similar framework, and prepare myself accordingly.
There's also a quote here that wonderfully sums up a concept I've been internalizing and, in much messier terms, evangelizing to my peers:
durable improvements depend on creating systems that create changes, not performing tactical actions that create the ephemeral appearance of improvement.