Give me a break. Bynum was constantly altering shots. That was his forte. Your comment is all good, but hypocritical.. If you are saying Drew didn't consistently alter offensive players shots, you are a liar...
Alright, so, if defense is Bynum's forte, why did San Antonio love to put him in PnR situations but refused to do so with Howard and instead opted to put Gasol in
many PnR situations? I'll tell you why:
Bynum is slow, he's not nearly as athletic as Howard nor can he cover the same amount of space as Howard can when closing out. At times, Bynum can look good on the defensive end, and actually, before the Lakers had him play heavy minutes, he was known for being a pretty good overall defender. But once the Lakers began to demand heavy minutes from Bynum, his defense was on and off and fans truly saw how terrible he is at covering ground. Also, he doesn't have the stamina Howard possesses, not even close. If Bynum had the motor Howard has, this trade may not have even been made. Moreover though, a motor or stamina is not something Bynum can develop, especially given his knee injury history.