Belichick has already brought in a guard who has started for years. I look for a couple of more to come in before Game 1. We've certainly won with weaker guards that Connolly and Kaczur. Personally, I would like us to bring in a vet if Mankins isn't here. After all, Neal is unlikely to play the entire year.
I think there is room on the roster for three backups for the interior line instead of the usual two because Kaczur is available as the #4 OT if necessary. One can be vet. That leaves us Connolly and one of the kids, or two kids if Dante has condidence in them. In the end, the unkown is Dante's confidence in Ohrnberger, Bussey, and Larsen. Wendell should even be considered. He was given full roster pay to be on the Practice Squad in 2009.