Well, I'm becoming a BIG believer in adjusting who and how you hire based on the evolving world around us. If, for any reason McD was unable to coach a game or 2 due to COVID, would be better IMO to have a guy on the staff that has HC experience. Failing to plan is planning to fail.
FWIW, I think Frazier would be a good get for the Raiders depending on his OC choice. They need some stability. Also wouldn't shock me if Rich Bisaccia keeps the job. He's had them playing well under a lot of adversity this year.