I'd like to think that he is allowing himself to try riskier stuff to see what works, who he vibes with, who can catch the tough pass or cut at the right moment--all of this during the preseason, the time to feel these things out with minimal risk. I'd also like to think that he is smart enough to use the knowledge gathered now to make smarter and less reckless plays during the regular season. Not saying that I *think* this is what's happening, just that it's what I *hope* is happening. It's what the preseason's for after all, no?
Also re: Jamal Crawford, they are not similar players IMO. Crawford is an excellent shooter, BJ no. BJ can handle the rock superbly and attack seams, then dish, JC not so much. BJ is a point guard, Crawford can be a PG in a pinch but he is a SG. Jennings is a much, much more talented orchestrator/passer than JC, and JC is a better scorer by a mile.