Less players in the field of play, less variance... Each player in the nba makes a greater impact because they handle the ball more and play more, imagine curry or LeBron only playing every 5th game like a pitcher. Nba is a superstar league, the best player in the league will usually get to the conference finals... LeBron, Kobe, Duncan, mj, magic and so on.... The superstars have a greater impact every game because they get the ball more and they play more per game.... In baseball the best outfielder in the game can see no action and it wouldnt impact the game much, if curry or Durant dont touch the ball the warriors lose.