Walter is expected to play a significant role Sunday against the Saints, as Ethan B. Greenberg of the Jets' official site reports that Tevin Coleman (concussion) won't play.
Walter and Ty Johnson are New York's top two healthy running backs, with La'Mical Perine also on hand. Though Walter probably is the team's preferred option on the ground out of the three, finding running room won't be easy against a stout Saints front that's allowing just 96.4 rushing yards per game.