Joe Callahan vs. Lawrence Simpson — Career Comparison

Looking at the career totals, Joe Callahan and Lawrence Simpson are fairly close on the surface numbers. Lawrence Simpson posted stronger numbers in ERA (4.3 vs 6.4) and WHIP (1.398 vs 1.639). Joe Callahan had the advantage in home runs allowed (0.28 per nine innings vs 0.77). By the career numbers, Lawrence Simpson 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.