John Anderson vs. Steve Rosenberg — Career Comparison

On the career pitching numbers, Steve Rosenberg posted a stronger line than John Anderson. Steve Rosenberg posted stronger numbers in ERA (4.94 vs 6.45) and WHIP (1.483 vs 1.813). By the career numbers, Steve Rosenberg 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.