John Andrews vs. Mike Cosgrove — Career Comparison

On the career pitching numbers, Mike Cosgrove posted a stronger line than John Andrews. Mike Cosgrove posted stronger numbers in ERA (4.03 vs 4.42) and home runs allowed (0.43 per nine innings vs 1.47). By the career numbers, Mike Cosgrove 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.