Time to Change Dontrelle's Catcher Again?

Based on the fact that the numbers seem to be positioned so to "speak for themselves," it comes off like you're suggesting that Dontrelle would have a sub 3 ERA had Treanor caught every game, and a 6+ ERA had it been Olivo.

What that says to me (and this is what I was trying to get at in the last paragraph) is that Dontrelle is essentially worthless in the equation.  That our ace can be great only when a certain catcher is behind him, or else he's terrible?  That doesn't say much for his ability to throw the ball.  And it almost suggest that he has no knowledge of the game, to be so bad at recognizing what he should throw that he's not shaking off whatever it is Olivo is calling for.  

As you said, the extent of the impact of a catcher has been difficult at best to determine.  The idea that in the case of Dontrelle Willis it's so overwhelmingly obvious, so overwhelmingly powerful, is simply impossible for me to believe.  Maybe Treanor calls for better pitchers, in better spots, than Olivo.  That's fine.  But again, it's up to Dontrelle to make those pitches.  I mean, if we're going to say that it's on the catchers, there's really two possible claims:

a) Dontrelle is a stud; Treanor calls smart pitches and Dontrelle executes; Olivo calls such ridiculously horrible games, and Dontrelle is so dumb to go with them, that he hits his spots on those bad calls and gets rocked.

b) Dontrelle is iffy; Treanor calls such an amazingly perfect game that Dontrelle, even with his poor performance, is still able to get through games with few runs; Olivo calls bad games and Dontrelle makes them worse by sometimes missing spots.

Or I guess there's c, which is that Treanor makes Dontrelle feel comfortable enough that he's pitches like a 2.71 pitcher, while Olivo makes him so uncomfortable that he pitches like a 6.35 pitcher.  And that, again, doesn't say much for Dontrelle, that his stuff and his makeup is so tenuous, so fleeting, that Olivo turns him into Jose Lima.

And how can it be that Dontrelle's third, fourth and fifth best games (by gamescore) and his four really out-of-the-ordinary terrible games have all been caught by Olivo?  If Olivo calls bad games, then are we going to say that Dontrelle is able to succeed in spite of him at some times, and succumbs to him at others?  Or is it more likely that Dontrelle has had a generally inconsistent year, where some games he looks like last year's stud and others like he needs extended spring training to fix his mechanics, and it just happens by distribution that his ugly, stat-killing games have all been caught by Olivo?