How many great teams have 3 2nd Round RB's drafted within the past 5 years?

[THE PISTONS]

Generally when teams can't run the ball, they draft Centers and Guards high...Tackles too.

The Bengals blame the RB and keep drafting more and don't address Center or Guard!

Having 3 2nd Round RB's on a roster drafted within the past 5 years is pretty crazy and a waste of resources.