Paul Erickson vs. Derek Thompson — Career Comparison

On the career pitching numbers, Derek Thompson posted a stronger line than Paul Erickson. Derek Thompson posted stronger numbers in ERA (3.5 vs 3.86) and home runs allowed (0 per nine innings vs 0.45). By the career numbers, Derek Thompson 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.