Not too many late-rounders on the OL were going to help the team this year, or probably even next year. Plus, remember, we have guys on the roster now who are late-rounders and UDFA we're developing who have already stuck around long enough to show the team thinks they're at least worth keeping around. No such guarantee on a late-rounder taken in 2010.
T. Williams is obviously going to play this year, probably be starting if not on opening day not long thereafter. I don't see Capers or anyone else they might have drafted in the 4th or later doing that, not even B. Campbell had they gotten him. Campbell would almost certainly IMO have been a guy who disappeared deep into the depth chart, maybe just made the practice squad. Very much a project. Doubt we would have seen him in a game for at least a couple of years. How many OL slots do we have for guys like that that aren't already occupied by people the team has deemed worthy of keeping around?
Meaning ... the Redskins aren't done for this season. They're going to continue to look hard at the guys who are here, the rest of the FA's out there, and then very carefully at cut-downs as training camps start to wind down. The starting five of T. Williams, Dockery, Rabach, M. Williams and Hicks, if it's going to change between now and opening day, would not have been crashed by B. Campbell or any other late-rounder this year. If someone else is going to steal a starting spot (or even 2nd string), it will either be by someone they took to develop earlier, or brought in in FA so far this year, or will pick up veteran-style from some other team between now and late August.
Bottom line, with so few picks to use in 2010 I'm not sure using the 4th, even 5th, on an OL simply for bringing in more OL would have been the way to go. They opted instead to take guys they hope can help on special teams this year, and maybe compete for some playing time, at LB, FB and WR/kick returner.
Were they right? We won't start to know the answer to that until at earliest preseason when we get to see how much progress the young pups on the OL (Rinehardt, Robinson, Oldenburg, Lichtensteiger, Fainika, etc.) have made.