Marshall Newhouse would have made the most sense to me. However, signing Erving to compete at or back up guard just doesn't make sense because of the numbers there.
We let two backups leave in free agency and essentially replaced one with last year's draft pick (McGovern). We haven't replaced the other, so I feel very strongly that that is what this move is about. Now, I'd love to be wrong and we add Newhouse, too, or even better than that, we convince Jason Peters to ride off into the sunset as a member of the Dallas Cowboys.