Have You Tried Turning Corbin Burnes Off, Then Turning Him Back On Again?

The 2023 season represents a golden opportunity for the Brewers. Their long-time tormenters, the Cardinals, can’t get out of their own way. The Cubs aren’t quite ready for prime time yet. The Pirates are an awesome story, but they’re light on impact players; this feels more like a feel-good warmup for the future than their year to shine. But the Brewers have problems of their own: their vaunted starting pitching has let them down to start the year.
You might assume I’m talking about the shaky back of the rotation; after all, the Brewers have been built around Corbin Burnes, Brandon Woodruff, and Freddy Peralta for years now. But Wade Miley is holding up his end of the bargain, and even Colin Rea and Eric Lauer have turned in mid-4s ERAs — hardly a disaster. Instead, the problems have come at the very top: Woodruff is out indefinitely with a shoulder injury, and Burnes simply doesn’t look like himself this year.
Over the past three seasons, Burnes had established himself as one of the best pitchers in baseball. He has outrageous strikeout stuff; his 33.4% strikeout rate over those three years was 0.1 percentage points off of the best mark in baseball for a qualified starter. He mastered his command in the past two seasons, turning in back-to-back years of excellent walk rates. He even added durability, topping 200 innings in 2022, the first time in his career he’d even exceeded 170.
What’s gone wrong this year? A little bit of everything, to be honest. He’s walking more batters. His strikeouts have gone missing in action. His velocity is down across the board, as are his swinging-strike and chase rates. He’s giving up more contact than ever before, and “ever before” encompasses the 2019 season, when he ran up an 8.82 ERA and 6.09 FIP and got sent to the bullpen. In sum, he’s pitched to a 3.86 ERA and 4.34 FIP this year, quite the letdown after his last three years produced a 2.62 ERA and 2.40 FIP. Read the rest of this entry »