No, this isn't advice to the local Police Department in a town full of Tim Tebows. It applies to wasting a bench spot for the back-up RB to an elite RB. If Maurice Jones-Drew goes down, his back-up isn't good enough.
Fantasy Football Index: "So projected third-down backs like Westbrook, Darren Sproles, Brandon Jackson and even aged Kevin Faulk could turn out to be 7- to 8-point per week guys, at a minimum, even if they never start a game. And that makes them usable players. Weeks they catch 5 passes for 50 yards and rush for 20-30 yards....well, I think Westbrook might have a few of those, too."