John Lannan vs. Herbert Smith — Career Comparison

Looking at the career totals, John Lannan and Herbert Smith are fairly close on the surface numbers. John Lannan posted stronger numbers in ERA (4.18 vs 6.1) and WHIP (1.454 vs 1.548). Herbert Smith had the advantage in home runs allowed (0.44 per nine innings vs 0.9). By the career numbers, John Lannan 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.