Thousands of people over the years have wondered "why didn't Player X block/foul Ray Allen?". Dude's got THE quickest release in NBA history. Next to impossible to get there in time. Questioning why Bosh wasn't fouled on the rebound has no merit either. A: I have never seen someone foul intentionally in that situation, and B: Bosh practically touch-passed it to Allen - there was no time to foul him, nor was anyone even in a good position to do it.