Running back by committee is what happens when you dont draft a stud RB, let's not kid ourselves. Using it as a strategy is a reaction to 1 or 2 teams success, and their success is predicated on their ability to draft talent at other positions (QB, WR, etc). Hell, you could even say WR by committee is the way to go when you look at teams like NYG or NO. What you need more then anything in the NFL is a stud QB, decent line, and intelligent OC. Beyond that, it doesn't matter where you spend the benjamins, including overspending (or perceivably overspending) on a RB