The most obvious add of the week goes to ESPN.com leagues, so chances are, he's out there for you to snag. And I'd use a top waiver spot on him. But while some owners or potential owners are going to be overly excited about his potential, I think it's important to recognize that the Patriots are a matchup-driven team bound to use more Shane Vereen when the matchup says to.
And, really, their upcoming schedule could dictate less Gray and more Vereen. I wrote about this earlier in the season, and there seemed to be a strong connection between bad rush defenses and a decrease in Vereen's snap count. We saw that on Sunday - Indianapolis, entering the game, ranked 22nd against the run according to our metrics. It was a bruiser's game. It was a Gray game.
The Patriots get the Lions, Dolphins and Jets in three of their next five games, all teams who can stop the run well. Don't be surprised to see a little less Gray during those contests, and even if he sees volume, he may not produce.