Don't think this applies to Coples, Davis wasn't fired for being a bad coach.
But it definitely applies to Everett Withers (so many people seem to think Butch coached Coples last season). As a Carolina fan who attended every game last year, both home and away, I cannot say Withers was a good coach. Ultimately, Withers was "fired" for bad coaching. That was a very talented roster of Butch's recruits and 7-5 was very underwhelming.
We all know Coples had an oustanding junior year. He produced quite well for Butch and I know he was one of Butch's favorites.
Coples is the first player coming out since Peppers to remind me of Peppers. Mario Williams is a great player and a physical specimen, but to me, he did not disrupt the overall game and scheme like Peppers and Coples. Over the last two years, teams playing UNC had to know where Coples was at all times.