The thing thing special about Team Spallina is he beats selfish play out of them. The parents are cowed. Unlike most teams where parents are telling Little Suzy to "go to goal!", on Spallina's team the parents are afraid to open their mouths. So yes, they are on another level but it's not because of any particular talent the girls have. JS could take a bag of gummy bears and coach them to win. Each one would stick to a different tooth in your mouth.
When they get to their high school team I'll give even odds that at least half will do more harm than good. Mom and Dad will finally have an outlet to tell them "Go to goal! You play for Spallina. Your coach doesn't know what he's doing!"