With multiple kids and multiple tryouts I have been on both sides of the argument. tryouts are imperfect at best, select team try outs, club tryouts whatever, there are deserving kids who do not make it and undeserving kids who do. But within that they get a fair amount of the makes and rejects correct as well. It is easy to be familiar with all the kids say on a particular team, know the strong ones and weak ones, then watch some selection committee completely get it wrong. Chaulk it up to the limitations of the process.