Bryan Bullington vs. Kenny Rosenberg — Career Comparison

On the career pitching numbers, Kenny Rosenberg posted a stronger line than Bryan Bullington. Kenny Rosenberg posted stronger numbers in ERA (4.66 vs 5.62) and WHIP (1.507 vs 1.616). By the career numbers, Kenny 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.