"The baseline of his conditioning right now, he's big enough, he's got the body to have a chance, he moves OK, we can see all that," Carroll said at an event publicizing the NFL's "Play 60" initiative. "Now we have to see if he can get stronger, and quicker and faster in the next month and a half, which is a very difficult challenge for him.
"But we'll take a look at him just before we go to camp and make a decision (on) whether we will bring him in."
Banks will begin working out with well-known trainer Travelle Gaines at the end of this week. If he can prove himself to be in NFL shape by this time next month, don't be surprised if a team takes a training-camp flier on him.