CB is a no brainer. RB had a little more to it than just lack of quality recruiting. The attrition of quality backs was horrible. First it was Chappell then it was Murray and the result was a string of RBs who didn't get to mature before being thrown into the fire. Jake Miller should have never had his shirt pulled, same with Garmin. The string of attrition and lack of maturation paired with underwhelming recruiting left us with an underwhelming backfield. Either way, nobody would have been able to run last year. Also, if we had a great back in 2010 that team would have rolled up the rushing yards.