Perhaps I'm reading too much into this statement, but I think he's trying to sell CCS to the fan base. Saying "I believe" is completely noncommittal. It's hoping, it's praying that CCS actually has the will and desire to be here. He hedged it with the "we'd still have to do it for any coach" and "why wouldn't I build on it..." comments.
No, nothing is instantaneous, but CCS hasn't gotten our team in position to win football games. With the exception of the GT game (I will give full credit to CCS there, he beat a team that finished with a winning record, and it was a positive, exciting, generally well-called game), even the first half the season felt like we were playing 2014 SMU 7 weeks in a row (and that was a BAD football team). We looked good, we had an undefeated record, but it was as thin as wrapping paper. We hoped that it was just the team learning and trying to get better, but it didn't show up in the win column the last six games. The only highlights after the UConn win were leading at the half against Cincy and Temple, and hey, if we win those games, then we have something to sell and not all is lost. But we didn't.