Where we really disagree is about Nava and Carp because I think both are essential in the postseason. You forgot to mention Napoli's bad foot, which means it is entirely possible Nava and Carp will both start against a righty. Plus Carp just might be our best pinch hitter against a lefty.
Bradley hits RHP for homers per AB more than Carp. The OPS sample size is too small, though Bradley and his high 700 OPS v RHP small sample leaves no doubt that he can slug well vs. RHP. In the event that 2 Lefties start v RHP starter, makes more sense to start Nava at 1B and Bradley in corner OF slot. Carp's a lousy OF defender and isn't "comfortable" at 1B anymore than Nava is.
Your comment about Bradley not being a base stealing threat is designed to distract from the slow footed Carp. Bradley can do anything that Carp can do, and more. He is as or more dangerous as a pinch hitter vs. Righties than Carp. Bradley is a threat to steal, Carp is not. Bradley is an oustanding OF defender, Carp isn't. Nava's OPS v RP is only 10 points less than Carp. Nava's the better defender and his 19 games at 1B in 2013 isn't an issue when compared to the 29 games of Carp, regardless of how many career games Carp's played there. Neither one has any business playing over there unless Napoli gets hurt. It's a short series, and Napoli's condition can't be handled in the playoffs like the regular season. It's all in, now!
In reality, the post season puts a much bigger focus on defense than offense. Big mistake to go weak defensively just to get another lefty bat against a righty starter, when Bradley is as talented or more so than Carp when it comes to hitting RHP.
Because of Carp's role during the regular season, the knee jerk is to claim he's an automatic on the post season roster. Quite clear he should not be.
Quite clear that Carp is going to be on the ALDS, where I'm quite sure his limited talent exposes him defensively and he also fails to deliver from the bench, offensively.
With Nava and Ellsbury's broken foot and the essential need for a designated pinch runner and 11 pitchers, no valid reason whatsoever to go with Carp over Bradley. None!
If the Sox keep 11 pitchers for the ALDS, no way does it make sense to keep Berry and Bradley, especially if either one replaces Carp. Bradley is not a good threat to steal--he was caught stealing as often as he stole this year for Pawtucket. Berry is a great threat to steal. A week ago I would have argued for keeping Bradley because of his defense and apparent resurgence in hitting. Now I lean toward Berry. But never both, not with Ellsbury and Victorino both ready to play. In case you have forgotten, those two have WAR's among the top eleven in the AL. You also seem to forget that the Sox are now on five days hiatus, which can only help in the health department, plus they get days off after games 2 and 4 of the ALDS.
Where you strike out is thinking the choice has to come down to Berry and Bradley. While Bradley is gifted v. RP on the power and pop level. Berry isn't. Berry is nothing but an average defenisve corner OF"er. Berry's role is purely the designated pinch runner base stealer in the playoff format. He's essential, because the bench has nothing on that front.
The choice comes down to Bradley vs. Carp, and Bradley is better than Carp at every phase of the game. Carp's no seasoned veteran, either. With Nava, no reason whatsoever to include Carp.
If they decide to go with two lefty starters v. RP for 1st and corner OF, it should be Bradley and Nava, not Carp and Nava. This isn't the regular season, and OF defense will be at a premium! There is nothing Carp can do that Bradley can't do. Nothing.
JBJ over Carp in every phase of the game? Interesting.