The Ravens said they wanted to upgrade the offensive line in the offseason, but so far they haven't. It's still early, but it looks like the team has pretty much committed to the same bunch of characters from a year ago. The Ravens didn't re-sign left guard Ben Grubbs, their best offensive lineman. Instead, they re-signed veteran center Matt Birk to a three-year contract and allowed left tackle Bryant McKinnie to collect a $500,000 roster bonus -- a clear indication he'll return next season. View the full article