Disagree with virtually every thing you said.
Omar's baseless opining aside, Flo doesn't play the "buddy" game, and he damn sure believes in accountability.
I'm not sure why ppl assume an OC, particularly a first time play caller, is going to come in and have carte blanche over all offensive staff hires. I'm not sure why ppl think Flo is going to just abandon his offensive philosophy, in favor of some unproven OC.
The HC is in charge of all aspects of the team.
Don't confuse delegation with deferring.