Again, I'll share what I posted in another thread about what I heard from a source close to the program.
When Geno decided to transfer, he told Pitino he wanted to be a gopher. Pitino told him we don't have room. Geno told him if you make room, i'll commit. Pitino told him he'll have to do some work but was able to make room. Geno was all set to commit but then his dad started to get in his ear and strongly pushed him to Gonzaga and away from the gophers saying you'd be crazy to play for the U when you can play on a top 5 team. Geno then commits to Gonzaga. The way they described it to me, it sounded as if his dad didn't even let him commit to the gophers and made him go to GU but I think he meant strongly influenced.
I've heard similar things but there was a couple others that had a big influence too.