Win your division and don't worry about being the odd man out on the wild card. End of story on that one. I guess it sucks to get tie broken out of both, but whatever, they were 1-4 against AFC playoff teams. Their only impressive win was the Arizona win which didn't look impressive at the time.
Anyhow, the Pats also have Kevin O'Connell waiting in the wings if Brady can't go and Cassel is gone. 6'6", 235, strong arm and can run. 4 year captain of his college squad. Just something to think about: Brady was drafted in the 6th round, Cassell was picked in the 7th as a flyer. O'Connell was picked in the 3rd with both of them already established on the roster. If heaven forbid Brady is out next season and O'Connell is the only option he will have had the same amount of time in the Pats system as Brady did when he took over in 2001.
That's especially relevant if Belichick can get a good set of picks for Cassell.