David Aardsma vs. Don Bessent — Career Comparison

On the career pitching numbers, Don Bessent posted a stronger line than David Aardsma. Don Bessent posted stronger numbers in ERA (3.33 vs 4.27) and WHIP (1.398 vs 1.487). By the career numbers, Don Bessent 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.