@PitchingFan is right on. Nowadays I think teams need to burn their arms early to make sure they make it to the bracket. Or at least burn them in the first rounds of the bracket. Over the past couple years I've watched great teams get knocked out because a lesser team had 1 great pitcher. Couple years ago in the 16u WWBA my son's team took down the #1 team in the country at the time. They threw their 5 or 6 arm (lefty 89-90) and we threw our ace. We won 5-4. They brought in their lefty ace for the last couple innings but it was too late. They were hands down a better team. We just had 1 really good pitcher and got a couple of lucky bounces.