I was thinking of starting exactly this topic, I guess it is easier to just reply. I agree with what appears to be the trend that one of Walker-Giddens and one of Scal-Shel will have to sit along with Hudson if he gets signed for some insurance. This whole 12 man roster thing is the reason I see no need to run out and sign another PG. That would just be one more player on the payroll to sit in street cloths and watch the game.
I feel Tony Allen will play well enough to deserve his uniform (active roster) but if he wobbles, he may just get cut to make room. Tony, Scal, Walker, and Giddens will probably continue to be trade bait but they are only going to attract a trade if they are playing so I suspect a rotation. The starting 5 are not going to practice much so we do need some extra bodies just to be able to get a 5 on 5 practice.