Again, Im not defending Diaz but I think there is a qualitative difference between a first time HC who lost to Butch Davis by a TD and later got shut out in a bowl game by a 10 win Louisiana Tech team ; and a 8.5 million per year coach on his third HC gig getting blown out 4 games into the season by Middle Tennessee State. MTSU easily could have dropped a 50 burger on UM but chose not to.
As a result of the losses, Diaz ended up scrapping everything he believed about offense and hired a spread O specialist that immediately resulted in back to back years of a top 25 offense. Anyone who knows anything about Mario knows he isn't going to change anything about his football philosophy.