I dont think Capel is a bad coach.
He's not a good coach. He does not relate to his players. He does not understand, nor have the ability to communicate, why his "stars" should ignore social media. He has one tourney appearance in six years despite having some very talented rosters. His brother is an issue for Pitt administration. The rest of his staff is cromulent at best.
This year he's got two guards, Rose and Leggett, both of whom would be useful to UConn right now as they can make their own shots and break down defenses. But, they both continually go off script when things get difficult, resulting in contested circus shots instead of looking for the open man. With those two guards, Austin, Corhen, Dunn and Guillermo, Pitt has a solid core than a guy like DH would have in 2nd place in the ACC right now.