Carimi is about as bad a fit for NE's offense as you can get. No thanks. Not sure why people keep brining him up to prove that NE could have passed on Solder as it does the opposite for me.
And please don't bring up Seymour again. Jonathan Kraft said the other day that Seymour would have been difficult to sign. BB's trade inidcates he thought he would be difficult to sign. About the only people who think Seymour could have been retained are the fans who look for an excuse to slam the organization.
Beyond that, NE went into the 2009 season knowing they had to re-sign Brady, Wilfork and Mankins and didn't have any cap room to do so then. So, if they retained Seymour, they would have gone into the 2010 offseason with Wilfork, Seymour and Mankins completely unsigned. There is no reasonable way to suggest that Seymour should have been retained.