Think of it by PA. A pitcher is 50% of every PA they pitch. If a guy throws 200 innings and averages say, 4 PA/inning that's 800 PA's in a season. I do have one question, though: isn't it better to average 3PA an inning and only get 600 PA? Pitchers want to reduce opposing PA right? I really like thinking of it in these terms, but that part confuses me... Yes, this is true. I was just using an example. If a guy pitches 35 perfect games, he'll obviously be more valuable than any 1/9th of the offense.