Watching the playoffs so far, I can't get over the abundance of jumpshots, many of them forced or out-of-rhythm. I have to give some credit to good defense, but I feel that the increased use and refining of zone defenses offers the best explanation. Through long stretches of both current series, the success rate in the paint plummets. Ball-handlers get crowded-out, big men get cramped, and passers lose their passing lanes, all thanks to four defenders, sometimes five, all sticking a toe i...