But it's not especially actionable. Except perhaps insofar as a reminder to not let yourself be locked in a company building and never interact with anyone outside those 4 walls.
In my case, it basically boiled down to working a long time in the industry and having relationships with former co-workers, consultants who did work for us, and clients.
ADDED: Having said that, a lot of people think their resumes are all they need to land whatever job they want. And maybe that's true in some cases. But other than my first job in the tech industry--which I got out of grad school--every other position has been basically through people I knew and my resume was essentially irrelevant.
Which is an extremely important insight.