lewis was in a zone. boki played some crap defense but people are taking away too much from lewis' offense. at this point he is still a below to average defender, however from that second preseason game(where he was totally lost) to right now i can easily say his confidence has improved 3 times over. as he gets more comfortable with his shot he can be a real asset with his length. i'd say another year before he's a solid top 8 or 9 guy but it's pretty safe to bet he won't be riding the IR with any fake injuries this year. should get time to prove his value.
Boki's on the ball defense is on par with Posey. People think: "well, that guy's a good defender" and simply assume that means in every aspect. Posey was no more than average man-to-man. He was far too aggressive. he fell for fakes too easily. That part of his game is vastly overrated. Posey has never been a "shut down" defender. But he played the passing lanes well... and doubled up well. Boki is just as good man-on-man... but doesn't do the off-ball stuff as well.