I was a bit curious as it seems the general consensus here is that Charlie Morton pitched better with Chris Snyder catching, therefore with Snyder being our primary catcher, Charlie Morton looks to be a better pitcher this year. I decided to go back and have a look. I apologize that I don't know how to make any fancy graphs or anything.
After we acquired Snyder, Doumit still caught two games for Charlie Morton. So Snyder has only caught 5 starts for Morton. Here's how those starts went.
1-2 record, 26.2 IP, 31 hits, 12 ER, 2 HR, 20K, 8 BB. Those numbers give you 4.12 ERA, .69 HR/9, 2.75 BB/9, and 6.87 K/9. Bear in mind that all of these starts took place in September, except the last in October. Take that for what it's worth.
Now I know we are talking minuscule sample sizes here, but let's compare that not only with his season average, but also the two starts he made after his stint in AAA that were caught by Doumit.
2-12 record, 79.2 IP, 112 hits, 67 ER, 15 HR, 59 K, 26 BB, 7.57 ERA, 1.7 HR/9, 2.9 BB/9, 6.7 K/9
2 Doumit starts post AAA
0-2 record, 9.2 IP, 15 hits, 10 ER, 1 HR, 4 K, 2 BB, 9.78 ERA, .98 HR/9, 1.96 BB/9, and 3.91 K/9.
It's also important to note that the two Doumit starts, one was in August, the other in September so if you are in the camp of "September stats don't matter", then keep in mind that the Doumit starts matter a little more than the Snyder ones, as they were closer to the heart of the season. So all this did was kind of reiterate that yes, Morton did pitch better with Snyder catching him, but there will always be that doubt about his competition in September and that the sample sizes are extremely small.
How much of a chance do you think Morton has at becoming the number 5 starter this year and what kind of success do you think he'll have with Snyder catching for him if he does make the rotation?