Biggest reason to not use Rhule and Baylor as an example; the Bears' program was nowhere near the mess Miami has been for the past 15 years.
Art Briles had put in eight seasons with the Bears and built a very solid program before he was run off for covering up sexual abuse—going 11-2 (2013), 11-2 (2014) and 10-3 (2015)—before a veteran in Jim Grobe, experienced from his Wake Forest tenure, tried to restore order in 2016 in interim fashion.
Briles was 32-7 his final three years, Grobe is able to go 7-6 in an interim role for a season and Rhule—year one, coming off of four years at Temple—gets a pass for going 1-11, with losses to Liberty and a UTSA program that's only been around since 2011? News flash; Baylor losing to UTSA is as bad as present-day Miami losing to FIU, if not worse.
Everyone stroking off Rhule this year's third-year run—after going 8-17 his first two years, inheriting a program that was playing in the Cotton Bowl three years before he showed up—but Diaz doesn't get that same inaugural-season courtesy?
I don't know if Diaz will get it done, or won't—but this Rhule "turnaround" narrative is comical—going 1-11 his first season, when Grobe was 7-6 in an interim role and Briles was 32-7 the three years prior?