Jason Anderson vs. Pierce Johnson — Career Comparison

On the career pitching numbers, Pierce Johnson posted a stronger line than Jason Anderson. Pierce Johnson posted stronger numbers in ERA (3.79 vs 6.39) and WHIP (1.356 vs 1.974). By the career numbers, Pierce Johnson had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.