It doesn't really matter if the GM has any ability to judge talent, it's all scout driven. You don't even need to be a good negotiator, the staff will value each player. A GM's primary job is to make sure the organization has all the resources to be successful, including hiring qualified people for each role. Has he done that? I dont know, he's definitely added resources, and he's added staff who are well regarded, but so far, the results just aren't there, that's all you really know.