I am a big fan of Peter Norvig. He is one of the few whose technical skills did not stagnate in a management role. If you see his Github's Pytudes, he regularly

I am a big fan of Peter Norvig. He is one of the few whose technical skills did not stagnate in a management role. If you see his Github's Pytudes, he regularly solves leetcoding questions that are usually given to engineers young enough to be his grandchildren.