The most impressive thing about Gill, IMO, was that he had his offensive and defensive coordinators selected before he was hired. Long and Torbush both have head coaching experience and have been coordinators in the Big 12 and SEC. Wyatt and Mitchell are very good recruiters, and have a history of bringing in top talent. On paper, I'd say that Gill's assistants are superior to Mangino's.
You know why he was able to have them already selected? Because one was unemployed and the other was one year removed from coaching at freaking Carson-Newman. Sounds like the foundation of one hell of a staff to me...
Bill Cowher is unemployed... doesn't mean the guy can't coach. Long was the offensive coordinator for Oklahoma and coached in two national title games... I'd say the guy qualifies as a decent hire for Kansas. Torbush was Mack Brown's defensive coordinator at UNC and was also head coach at UNC after Brown left. The guy got burned out of coaching, just like what Urban Meyer is going through right now. He resurfaced this year at Mississippi State, who plays in the SEC last time I checked.
Are you attempting to compare Bill Cowher (retired) with Chuck Long (fired)?

Torbush has been mediocre at best, everywhere he has been. As far as him being "burned out of college football," you may be right. He did get fired from every job he had at the D1 level. He went from aTm to Carson Newman. He never took a year off, he just couldn't find any other jobs. The second a D1 spot was offered, he took it. And he coached the #58 defense in the country at that SEC school. Warm up the mother &@#%ing banner machines!!!!