Well, if their front 4 still does their job well he can still potentially limit that at the line of scrimmage. If the line and Maroney break through he's going to give up some yards.
Keep in mind that Moss will be double teamed so there will be someone largely uncovered.
I think Del Rio will obviously double team Moss and adopt a "bend but don't break" philosophy. Welker will obviously be a focus of attention in that scenario.
But someone who might slip under the radar screen as a pass threat is Maroney himself who, along with Kevin Faulk, I can imagine having some big yardarge as a receiver as I think the middle of the field will often be open.