I disagree... He had decent assistants
Of course he did. One of the major abilities a HC must demonstrate is the ability to identify and hire good assistants. Nick Saban had GREAT assistants...some of the best in the game. That does not mean he wasn't a good HC. It means he was a good HC because he was able to identify and hire them.
You're misunderstanding my previous post. Of course, an assistant may know more than a HC about their particular specialty. But they aren't typically going to work for a HC who they don't think they can learn from in some way and grow as a coach. Dabo has been able to hire quality assistants b/c he has demonstrated himself to be a good HC who others think they can benefit from.
Beamer, as of yet, does not have that capacity.