TBH the pull-up 3 is my least favorite shot in basketball. There is a small number of guys that can take it and make it consistently. And an army of chuckers who should never, ever take that shot - and do anyway.
There is also little question that Pitino is the original source of the scourge that is called "the three point shot." And completely agree that he has done a remarkable job of adapting and staying current.