Taking Piazza in the first round means that you miss a chance at getting someone like Giambi, who hits .330, with 40 HR's, 120 RBI's, and 110 R's. Positional scarcity is important, but I have never and will never recommend drafting based *purely* on positional scarcity. Piazza is worth a 2nd round pick at best, and in most leagues, he *will* go in the 2nd round. If you have a high enough pick in the 2nd round, and you really want Piazza, then take him. If he's still around in the 3rd round, absolutely take him. But very few people will take him in the 1st round. And for good reason. If someone takes him in the first round, remember that you can get IRod or Posada in the 5th round or so. And while Piazza is better than both, he is not *that much* better.