Why not Paul Petrino? The guy has coached with his brother on multiple occasions and is now the head coach at Idaho (has been for quite some time). There was an article in the recent ESPN the magazine talking about the contrasts between he and his brother's situation and it sounded like Paul was not happy to have to be coaching in the FCS in 2 years. He has gotten Idaho to 8-4 this year and if there's somewhere possibly harder to recruit to than UConn, it would be Idaho. I wouldn't be opposed to having him step in should UConn be sensible and fire Diaco.