Jose Diaz vs. Art Mills — Career Comparison

On the career pitching numbers, Art Mills posted a stronger line than Jose Diaz. Art Mills posted stronger numbers in ERA (5.36 vs 9.39) and WHIP (1.853 vs 2.609). By the career numbers, Art Mills 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.