This is true but it may work in this particular case. If Singletary has a good year he may price himself out of Buffalo. Cook will more than likely be in on passing downs and counter runs and misdirection. Moss is a short yardage guy that should see good push from an improved O line, especially on 3rd and short. If Cook can prove he can produce positive yards on run plays in particular between the tackles he will most likely be the feature back next year with Moss as RB2.