Alec Marsh vs. Mike Witt — Career Comparison

On the career pitching numbers, Mike Witt posted a stronger line than Alec Marsh. Mike Witt posted stronger numbers in ERA (3.83 vs 4.96) and home runs allowed (0.78 per nine innings vs 1.55). By the career numbers, Mike Witt 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.