Also WRT McDaniels as it pertains to QB development, name me a candidate for OC who has a better track record of developing and maximizing QBs than Josh McDaniels. Look back at when he took over as QB coach, then OC with Brady and remember how those teams changed over that span. He maximized the corpse of Cam Newton. He made Mac Jones a legitimate NFL QB and (believe it or not) that offense was #6 in scoring with rookie Mac Jones at the helm.
I'm not saying he's necessarily a grand slam, just that he's far from a bad choice if it happens.