I honestly think it's too early to assume that. None of us thought C. Upshaw was going to last to the second round last draft. I am not as familiar with K. Greene. I work at FSU, so i am real familiar w/ Rhodes.
We should target Tank Carradine with our 3rd pick imho. The D-Line is the strength of this draft-class. The opportunity to grab a pass rusher will be there in RD 3