Not gonna go through the whole list because I could not care less about the small school coaching changes. These aren't in any specific order.
The Good:
Mario Cristobal has gotten Oregon back into national champion contention affter a few years of floundering with Helfrich and Taggert. Top of the list so far, imo.
Likewise, Dan Mullen continues to prove he is one of the top coaches in the country, taking a Florida team that was lacking depth and not many play makers and putting together what appears to be back to back 10 win seasons for the first time since Meyer was there.
Sonny Dykes art SMU. Even though I said I didn't care about small school's, I'd be remiss if I didn't point out how well SMU has done under Sykes this year. Great hire for them.
The OK:
Herm Edwards has done pretty well with Arizona State. They were ranked at one point this year, though they've fallen off lately. Considering he got a D- rating, I think he's definitely over-performed relative to expectations, though obviously far from a home run.
Pruitt has gotten TN to play exorbitantly better after a dreadful start to 2019. The young players seem to be developing nicely and the upper classman finally seem to have bought in to what Pruitt is selling and the one's that didn't seem to have been weeded out. I can't put him in the good column yet with a losing record. Winning out will go a long way for the program, imo.
Matt Luke has done a better than expected job at Ole Mis, imo. Ole Miss has been in every game so far in 2019. Luke seems like a solid coach and Ole Miss seems like a team on the rise.
Jimbo Fisher has been good but not great at A&M. Looking like he'll finish the regular season with 7 wins and one would think no more than 8 wins. Pretty mediocre for a 7 million dollar coach, but he's burned up the recruiting trails so better days may yet be ahead. Wins vs UGA and LSU to finish the season would certainly boost his stock up to a good hire.
Joe Moorhead had a great first year winning 8 games in the regular season, but he was using primarily Mullen's players. His sophomore year, however, has left much to be desired. MS State still has a chance to go bowling with a couple wins to finish out the season. Moorhead has his work cut out for him to stay competitive in the SEC West.
The Bad:
Taggert and Morris have already been fired after disastrous tenures with their schools. Very glad Taggert wasn't chosen to be the HC here as I do remember we were tied to him at various points.
Kevin Sumlin was a high profile coach with plenty of success and he's yet to find much at AZ. It's especially underwhelming considering the Pac 12 South is pretty weak at the moment, with Utah as the only ranked team. Can't imagine he'll survive another sub .500 win season.
Chip Kelly has not been very good at UCLA. After high expectations, he has started 0-3 in back to back to seasons. But much like Tennessee, UCLA seems to have caught a 2nd wind in the back half of this season, winning 3 in a row and 4 of their last 6, all against pac 12 foes. May be they have turned a corner. Time will tell..
Scott Frost at Nebraska. Frost certainly seemed like the next hot shot coach that would mold Nebraska into national title contenders. But so far, he's struggled to even get Nebraska out of the cellar. This season looks like a slight improvement over 2018, but he'll need to win 2 of his final 3 games to go bowling. Being that he is a Nebraska legend, he'll likely get a longer leash than the guys above him on this list, but he is going to have to start winning soon. Another year of struggling to stay at .500 will make his seat pretty hot.