Paul Erickson vs. Zach Jackson — Career Comparison

On the career pitching numbers, Paul Erickson posted a stronger line than Zach Jackson. Paul Erickson posted stronger numbers in ERA (3.86 vs 5.81) and WHIP (1.472 vs 1.566). By the career numbers, Paul Erickson 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.