The Facts: The Dolphins signing Foster can help push Jay Ajayi and Kenyan Drake, but the team would not have signed the four-time Pro Bowler if there wasn't some sense of unease surrounding the position group. "I just think it adds great competition to that (RB) group," HC Adam Gase said. "I really like his skill set. I've been an admirer of his. ... It'll be interesting when we get him out there and just to see how he kind of fits in."

Diehards Line: Gase said Tuesday that it's difficult to predict workload numbers or playing time, and perhaps Miami's limited investment in Foster ($400,000 of dead cap space if he's released) leads NFL.com to believe that is true. But there seems to be more to it than that. "He's the type of guy that he can run his route tree similar to what a wide receiver's is," Gase said. "When we worked him out, I put him in a couple of spots just to see how that looked and he runs about as smooth as any running back that I've ever seen." That's not a huge surprise. We've all seen Foster as that. The question now is whether he can do it on a sustained basis again.