Hayden Birdsong vs. Angel Moreno — Career Comparison

On the career pitching numbers, Angel Moreno posted a stronger line than Hayden Birdsong. Angel Moreno posted stronger numbers in ERA (4.02 vs 4.77) and home runs allowed (1 per nine innings vs 1.37). By the career numbers, Angel Moreno 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.