Great take. I agree.I've been of the opinion for a while that as a scout Lane is actually quite good. The individual players that he identify are all either good or youngsters with a lot of potential.
His issue is that he lacks the knowhow to take these individuals and put together a functioning squad. Which is what whoever replaces him/gets brought in to work with him needs to be good at. Someone that if Lange stays can tell him "we need these positions. Bring me some options."