Again I believe his contract was up at the end of the season, not sure how it works where you are from but in the US you can not actually FORCE someone to sign a new contract. Basically unless they were willing to part with Brady NOW, there was no way Jimmy G was staying. The comparison to Bledsoe situation is way off since Bledsoe never even makes the discussion of best QB's of his time let alone best of all time. I mean honestly did you really just compare Brady to Bledsoe,
. Also, they traded Bledsoe AFTER Brady had cemented himself as the teams starting QB (having won a Super Bowl and all).
Obviously the thought is Brady still has a few more seasons left in him at a high level. Jimmy G is off to a hot start with the 49ers but let's wait a bit until we put him at Brady level.
Bottom line is they keep the perhaps GOAT QB playing for them and get a 2nd round draft pick for a player who was going to walk away for nothing at the end of the season. Not really an awful move by the Pats.