Ian Kennedy Is an Asset
Some years ago, Ian Kennedy was a reliable mid-rotation starter, utilizing a four-seam-heavy attack and leaning on his ability to generate fly-ball outs for success. Kennedy eclipsed 190 innings pitched in a season five times, highlighted by a 2011 campaign in which he threw 222 innings for the Diamondbacks, finishing with a 2.88 ERA, a 3.22 FIP, 4.4 WAR, and fourth place in the National League Cy Young Award voting.
Kennedy’s fastball has always been his go-to pitch. Since debuting in 2007, Kennedy has thrown a four-seam fastball 61% of the time, the highest percentage among any pitcher with a minimum of 1,000 innings pitched during that timeframe. Kennedy’s fastball has shown flashes of brilliance, with impressive wFA/C totals of 1.43, 0.73, and 0.97 in 2011, 2014, and 2016, respectively.
Of course, someone with such a fly-ball-heavy approach could find himself running into some barriers to success as modern hitters continue to adjust and hit the ball out of the park. Kennedy’s success as a starter in 2016 for the then-defending World Series champion Royals dwindled in the next two seasons as his FIP ballooned and hitters continued to hit the ball out of the park against him. Kennedy’s 2017 and 2018 campaigns resulted in his lowest innings pitched totals in nearly a decade, as well as career-low strikeout rates. During those two seasons, opposing hitters were especially productive against his fastball, putting up a wOBA of .359 and hitting 48 extra-base hits against the pitch. Their average exit velocity and launch angle against fastballs in 2017 and 2018 were 90.7 mph and 24 degrees.
With Kennedy still owed $33 million through the end of 2020, the Royals needed to find a way to once again extract value out of their veteran right-hander and announced in spring training that Kennedy would move to the bullpen. The hope, ostensibly, was that Kennedy’s struggles would diminish as he no longer faced the task of turning over lineups. In 2018, Kennedy’s opponents had a .971 OPS the second time through the lineup, the worst mark in baseball out of 162 pitchers who faced at least 100 hitters a second time through. Opening up rotation spots could afford the rebuilding Royals a chance to challenge some younger pitchers while trying to extract value out of Kennedy in the bullpen. Read the rest of this entry »