May 26, 2021
Remember when the Rockies attempted to assemble a super-mega bullpen? During the 2017-18 offseason, the team committed a combined $106 million to Wade Davis, Jake McGee, and the protagonist of this article, Bryan Shaw. What followed was a disaster. The trio put up just 0.4 WAR while part of the Rockies bullpen, a miserable return on investment.
Each pitcher had his own flaws, but none was worse than Shaw, who dragged down an already disappointing total with -0.5 WAR over a two-year span. If you’re not too familiar with him, Shaw is synonymous with his cutter, which he’s thrown upwards to 80% of the time in his career. It’s a fantastic pitch, featuring some of the league’s best horizontal movement in tandem with ample rise. The problem: In Colorado, the high altitude suppresses magnus force, the source of backspin and thus vertical break. Many of Shaw’s cutters became extremely hittable in this new environment – his Hard Hit rate jumped from 28.6% in 2017 to 39.7% the following year.