Napoli's games played last three seasons: 233, .879 OPS, 128 OPS+
V-Mart's games played last three seasons: 375, .838 OPS, 121 OPS+.
Martinez has played 142 games more than Napoli. Napoli has been more of a part-time player, and over more significant sample sizes, offensive performances tend to even out with hitter tendencies and weaknesses becoming more exposed. I don't need to explain this to you, but as usual, when you're "Doiji'd" with a player logic eludes you, and no amount of numbers or logical arguments will be enough to counteract the blatant bias.
Feel free to use logic and not dodge particular subjects (Sample sizes anyone?) (Role-player vs full time regular anyone?) (Decline in offensive performances as the year goes on due to the rigors of catching FULL TIME) when making an assesment of a player. Martinez is clearly a better hitter and player than Napoli, who is a role player.
You could at least get your facts straight. Napoli caught 87 games last year, and as a catcher, he had an .817 OPS. Napoli has never had to deal with the rigors of being a regular catcher, and that's a very real issue, whether you'd like to admit it or not. Mike Scioscia knowsmore about baseball than either of us, and he doesn't use Napoli as his main catcher, because both his D are awful, and because he (and possibly the rest of the league) see him as more as a part time player.
If he were to put up an entire season of above-average hitting from the C position, then you could make an argument about his offensive potential, but as usual, you're making an argument out of thin air and spouting it as fact. You can't project a catcher's offensive prowess (if he's a regular catcher) over a full season as if he were any other regular player because of the rigors associated with catching. And seeing as Napoli has never played a full season in the Major Leagues (114 games is his top mark), it's impossible to compare his worth to a full-time player such as Victor Martinez. Then again, i shouldn't have to tell you this, but for some reason, i am forced to.
Objectivity escapes you. You like Napoli (like so many other players before him) so you completely ignore obvious flaws or problems with his skillset in order to prove a point that isn't there. Napoli is not worth more to this team than Martinez because he is not a regular catcher, and would perpetuate a problem we already have. The objective answer (as in, the answer given by someone who doesn't have a hard-on for a player and is not fed by bias) is to get a better defensive catcher who is proven to be able to handle the rigors of catching full time.