[ Generalist ]
I was in a role as Acting General Manager of an engineering department, in my early 30s. It was during a takeover/merger, and the manager who had been seconded elsewhere was returning.
It was a pivotal decision moment for me, and he put it plainly for me. It was time to decide if I wanted to be a specialist (technical) or generalist (managerial).
Not that it was a difficult decision. I’m pretty sure I wouldn’t have been in the AGM role if I had leanings towards technical expertise.
If you’re going to be a generalist, be an expert at it.