Hayden Birdsong vs. Bob Moose — Career Comparison

On the career pitching numbers, Bob Moose posted a stronger line than Hayden Birdsong. Bob Moose posted stronger numbers in ERA (3.5 vs 4.77) and WHIP (1.345 vs 1.438). By the career numbers, Bob Moose 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.