Guillermo Moscoso vs. Bill Williams — Career Comparison

On the career pitching numbers, Guillermo Moscoso posted a stronger line than Bill Williams. Guillermo Moscoso posted stronger numbers in ERA (4.28 vs 5.06) and home runs allowed (1.13 per nine innings vs 1.69). By the career numbers, Guillermo Moscoso 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.