As we have seen the terrible calls again this weekend. I would like to reiterate that Belichick had it right some years ago. he suggested making EVERYTHING reviewable. Some argue that it will slow the pace of the game down, but I don't believe it will. All that is needed is to leave the amount of challenges the same. If you want to review PI, that's one of your challenges. You wanna review holding, that's one of your challenges.