More photos » by Nam Y Huh - AP Houston Astros pitcher Chris Sampson. (AP Photo/Nam Y. Huh) Browse more photos » Fangraphs.com has an interesting statistic called run value by pitch type, which is explained here and here.  This raises the fascinating question, which Astros' pitchers are the most effective at throwing various types of pitches.  This exercise probably is best saved for the end ...