I am currently developing a program/course to deal exactly with this issue (15+ years as a team lead/manager/director, started in systems admin and development). I want to take a few students one on one through the course. Feel free to email me: students@makerleader.com.

I was going to wait a few weeks, until I had more content ready, but might as well start now.

If anyone else is running into something similar, shoot me a note, we can get a 5-6 person study group together and I'd happy to provide some generic basics, and do a deeper dive into the specific issues you may be having (free of charge obviously, hopefully in exchange for some feedback).