Because Mauer is a really good defensive catcher and the Twins are a better team when he is behind the plate instead of Doumit/Butera.
Correction- Because Mauer WAS
a really good defensive catcher- his defensive metrics have slipped badly the last 2 years. Regardless, I agree that they are a better team with him catching. But keeping him healthy for the last 6 years on his contract trumps that fact on the priority scale
Mauer is still relatively young and in the prime of his career, there is no reason why he can't start 125 games behind the dish. Anything between 100-125 is ideal. You can then DH him another 25-45 games. No real reason to have him play 1st base, if Morneau needs a break they should be putting Parmelee at first.
Perhaps the reason would be that he has only played over 120 games as a catcher in a season once? (That was 135 games started at C in 2008 [139 played] when he was a 25-year old youngster, and he's been dealing with major health issues ever since.)
I think 100 games for Mauer behind the plate with Doumit getting 62 starts would be ideal if it isn't deleterious to Mauer's health (Doumit caught 59 games last year and 60 the year before at Pittsburgh.) 0 for Butera.
Edited by jokin, 27 January 2013 - 11:40 PM.