Well, at the moment, anyway, it appears that this is not going to end at all well.
Let's be clear. Logan Mankins is the quintessential Good Soldier. He's done his job well enough to become one of the best offensive linemen in the NFL. He's played every game since 2005. He has not been a malcontent. He does not mouth off. He is a talented athlete playing a vital position on a team that depends completely on an aging quarterback who needs more protection than he used to need.
Let's also be clear. Contract negotiations do not take place under candy glass. There are already anonymous "league sources" saying that the Patriots brought Mankins a deal well worth signing for a player at his position, which is precisely what you do, if you want to win the public-relations battle in such matters.
All that having been said, this current impasse does raise the question (again) of why, so often, negotiations between the New England Patriots and their star players end up being not merely tough, but uncompromisingly nasty. Logan Mankins is now publicly saying that the team dealt with him in bad faith. He is not the first Patriot to make this charge, but it is rather extraordinary coming from a player who's always been circumspect in the extreme in his public comments. This is not a career malcontent or a locker-room lawyer. This is a guy who's done nothing but his job for five seasons, and done it nothing but well. He's also one of the few Pro Bowl players left on an offense that's reaching its sell-by date rather quickly.
The wagons are already circled. He's only a guard. What do we need him for when we've got Nick Kaczur? Hey, Bob Kraft is a decent guy. Three Super Bowls! Three Super Bowls!
Meanwhile, Tom Brady's a year older.