2018 Positional Power Rankings: Bullpen (#1-15)
Welcome to the last installment of our positional power rankings series, tackling the top half of the bullpen rankings. Just in the last decade, we’ve witnessed the game achieve record offensive levels by certain measures. One positional group, shortstops, is enjoying a golden era. Some positions are weaker, some are stronger. The game and its positions experience peaks and troughs of production. But relief pitchers give us a constant: they keep marching forward, to greater workloads and relevance.
Last season, bullpens accounted for a major-league record 38.1% of total innings thrown, up three percentage points (35.1%) from 10 years earlier. In 2017, relief pitchers beat their previous record for workload — set the previous season — by 578 innings. Thirty years earlier, bullpens accounted for 31.8% of innings; 50 years earlier, for 26.0%. This trend has been a constant.