i get what you're saying now. and i'm all for ALL of the calls being done by ABS. with that said, it's not a large percentage of calls that are missed by the umps. and if a kid thinks he's right, then he has the right to challenge. it's a great tool. like i said, i've seen a lot of AAA (where it's used) and AA (where it isn't) and i am fully in favor of it, even if it's a limited number of challenges. and i KNOW the players are in favor of it.