I'm guessing that may have something to do with Carroll being released. They probably asked him to play at Syracuse to work with the kids. I thought there were stories about him working with Walters earlier.
Or else Walters might have Vince Wilfork on his fantasy team.
{Edit - oh, I see it is 4 days old, so it could not have to do with Carroll. Then it has to be Wilfork.}