I would probably go with the guy with experience. If you have held stocks for any period of time, you should be amazed at how may CEO and upper level management get recycled, even after multiple failures.More than the company has ever paid a CEO in it's existence. $3.2 million a year but not sure why that matters. It's your career and your own company on the line.
Going high risk is not HCKD. Going with a guy who has never, not even once, been a OC at a P5 program is an upgrade over Chev because he can put together a snazzy youtube video? How do you know Pitt's success isn't because of their OC and Marion is self promoting himself as the WR coach power behind the OC throne? Are we really to believe Whipple left for NU because Marion is all that and a bag of chips? Why isn't Marion the OC at Pitt then?
Sanford may be a dud, but to me, given he is an experienced OC, he cannot be worse. He ran circles around CU in September, in their bowl game last year they posted nearly 500 yards of O. So I do not buy the narrative he is somehow terrible, not an upgrade over Chev and inferior to a WR coach, and that the conclusion is unassailable.
When Sanford was OC, the teams he coached for went to bowls 6 out of 7 times, if I count correctly. I heard people blather on and on about how CU needed a run first identity, now you get it and all you can do is pine for a position coach to be OC. Amazing.
Bottom line, there are way to many unknowns to know one way or the other right now. Unless and until CU gets a competent OL, none of this really matters.