In the typical 5x5 Roto league scheme, all pitchers are evaluated on the basis of ERA, WHIP and strikeouts. Relievers collect saves (and the occasional win) while starters garner victories (and/or quality starts). Points leagues often do incorporate other statistical categories, such as innings pitched, hits and walks allowed (all three of which are, admittedly, part of the WHIP stat) and potentially more esoteric categories, such as complete games/shutouts (a pair of true rarities these days) as well as negative point categories such as losses, blown saves, earned runs (again covered by ERA).

Whether evaluating counting stats or ratios, these methods of evaluating those who toss the baseball for a living need not the serve as the...