While I agree that we need an upgrade at one or both guard positions, The logic that everyone is using to take a guard in round 1 is faulty. Saying that we shouldn't take a RB in r1 because the position is devalued in the draft and then turning around and saying we should take a guard in the 1st instead is just silly. Guards are rarely drafted in the first round... much more rare than a RB drafted in round 1. Here is a breakdown of the best guards and when they were drafted.
Best guards draft breakdown:
Marshal Yanda – 3rd (86th overall)
Carl Nicks – 5th (164th overall)
Ben Grubbs – 1st (29th overall)
Jahri Evans – 4th (108th overall)
Josh Sitton – 4th (135 overall)
Logan Mankins – 1st (32nd overall)
Kris Dielman – UDFA
Chris Snee – 2nd (34th overall)
Eric Steinbach – 2nd (33rd overall)
Chris Kemoeatu – 6th (204th overall)
Brian Waters – UDFA
Brandon Moore – UDFA
Please please please digest this information and THINK about it. Don't forget that Boling is a 4th round pick and could turn into a very good starter. Remember he was getting bounced around this year and didn't get a training camp either. Don't discount him yet.
Also don't assume that if we take a RB in round 1 that we aren't allowed to upgrade the guard positions. We can still draft a guard in 2nd 3rd or 4th and he could be a good starter. If DeCastro is gone by our pick, next guards are Glenn (proj. 1-2), Osemele (proj. 2), Zeitler (proj. 2), Miller (proj. 3-4), Nix (proj. 3-4), Washington (proj. 3-4). There isn't a ton of dropoff in talent here that would warrant reaching for a guard in round 1 outside of DeCastro. Take any of those guys in r 2-4 or a T or C to stick in a guard. There are a LOT more options to upgrade at guard other than drafting one in the first round.