Good post.
The decision between Smith, Carimi, Costanza, Sherrod, et. al., boils down to what is the best move for the future. If you believe that Free is the guy as LT, you trade down and take a RT later in the draft and pick up an extra second or third. If you don't, you take a guy like Smith.
I view Smith like Soldier, an exceptional athlete that may very well prove out as a future Pro Bowler. Both have high ceilings but aren't quite ready to step in and start for a contending team.
I like Carimi best because he can step in and play RT right now. He may develope into a LT, but since we already have one in Doug Free, it would have to be as a option in case of injury. I also think that we can get a Carimi or Costanza in the mid teens affording us the option to trade down and maybe pick up a NT or ILB that are "nice to haves" but not essential.
Maybe I am blind, but I don't see a need for CB in the first round. Especially one with a single digit Wonderlick. Peterson maybe all that and a can of beer, but, to me, is not worth given up second and third round picks to trade down. We need those picks. But then, I don't make any decisions and this may very well be the way they go in the end.