I think the summer league is vital to introduce rookies to the style of the NBA and to give more PT to sophomores. Young players need to realize the speed, physicality, and rules of the NBA game. How much quicker you must get off a shot with the shot clock at 24 sec. Instead of 35. How much spacing there is on a court with an NBA 3 point line, and what fouls you can and can't get away with in the league. Yes the summer league is sloppy and that's because it's the equivalent of a group of young kids at a basketball camp, or a orientation at a college. It's sloppy cause all of these players are learning.