I agree 100%. I don't know where they can come up with one now, other than the D-League. But you can see that they are really vulnerable if one of the bigs goes down.
If they do put another big on the roster, I'm sure it means Forbes goes to Austin. I really like him, and I was happy when he made the team. And he was no pre-season fluke - his 3P stroke is legit. But to me this roster makes a whole lot more sense with some big man insurance. Murray is clearly here for the duration, and even though a lot of people are down on Kyle, he's not going anywhere either.