Bobby Petrino, some numbers and facts, aside from the off the field matters.
Never beat Alabama.
2008: 2-3 vs ranked teams. The 2 wins vs Tulsa, and Auburn. Lost 52-10 to #7 TX. Scoring Def. Rank: 92 Recruiting Ranking 36th.
2009: 1-4 vs ranked teams. Lost 35-7 to #3 Bammer. Def. Rank: 58 Recruiting Ranking: 16th (with 31 in the class)
2010:3-3 vs ranked teams. Lost 65-43 to #12 Auburn. Def.Rank: 47, Recruiting Ranking: 49th
2011: 4-2 vs ranked teams. Lost 38-14 to #3 Bammer, and 41-17 to #1 LSU, Def. Rank: 33, Recruiting Ranking: 24th
2012: Recruiting Ranking 34th.
Ark. scheduled 3 patsies a season. Against the highest level of competition (top 10 teams) he was 2-7, and frequently was blown out. Had at least one loss in each season by 21+. By comparison, Houston Nutt's recruiting classes were consistently ranked 25-30, so he didn't even recruit as well as Nutt.
Tidbits from Lousville: Lost 37-7 to an unranked Memphis, and was blown out 49-28 by #14 Miami of Ohio in his first year, and finished the season with the #72 Defense. In his second season, went 11-1, lost 41-38 to #3 Miami. Gave up 27+ points 5 games, including 49 to an unranked Memphis team, Def. ranked 24th. Year 3 went 9-3, with a 45-14 loss to unranked South Florida and defense rank 47th. Year 4, 12-1, #4 L'ville lost at #14 Rutgers 28-25.
The way I see Petrino? The offensive minded version of Tommy Tuberville, with a little twist. Petrino beats just about everybody he should, but rarely gets an upset win, and is frequently blown out by highly ranked teams. Could he recruit better to Auburn? Probably, but we all know recruiting can fall off at Auburn if it's not tended to, and he clearly isn't the best recruiter in the world.
So, you Petrino pimps will be happy winning 10, but never getting over the hump, and having to suffer 3 TD losses to highly ranked opponents at least once each year? Losses where, many times, not only is the defense ass raped, but his high powered offense fails him too? That's his body of work. Not talking one year or 2, but 8 years as a HC. You'll be happy with a guy that doesn't care about defense, and even in winning will frequently be in a shootout?
Malzahn? Unproven as a HC, but here's what you'd get. A guy that I personally heard make the following statement: "When running this offense, you can't be concerned with defensive statistics". Think back to 2009. Set offensive records, shittastic defense. All offenses have off days, or do like we did that season, build quick leads, then stall. With no defense, we blew several leads that year, and the only way an offensive minded HC can win a championship is to be assured of outscoring any and every body. Now, it doesn't take Cam Newton to make that offense effective, but it takes Cam Newton to assure you it will never ever break down completely. Hell, even Tony Franklin will tell you defense wins championships.
I'm with GF on this and offensive minded HCs. I love offense, but not at the expense of defense. And you got some of these guys out there that don't give a shit about defense. Petrino and Malzahn are 2 such coaches.