It's really simple with Pitt. They are a team that has won in the regular season by having older, more mature players than most everyone else.
They lost Wannamaker, Brown and McGhee to graduation.
They lost Woodall to injury. That's 4 of their top 6 from last year and both their PGs from last year. Add in Birch leaving and there you go.
Gibbs is playing as well as he can at PG, but he is much better off the ball. He isn't very fast, quick or athletic and is better running off screens or getting the kickout than being a lead guard.
Really though, Taylor has been the big bust for them. He was supposed to be their next star (their first MCAA) and the start of their great recruiting. He has been a flop.
They still play hard, but they are not as tough as previous teams and slightly less talented.
Cuse looked pretty bad and still won by 10+. That is a deep team, even if individually they aren't stars (Top 10 NBA types), they are all good players who have bought in and know their role.
Dixon really knows how to play against that Cuse zone though, even with a horrid team he kept it close.