This from MLBTR makes it sound much more promising:
“It’s a modified pillow contract for the 29-year-old. That reflects a dismal final few months of last season. Giolito looked on track for a nine-figure deal early in the summer. Over his first 21 starts with the White Sox, he carried a 3.79 ERA while striking out more than a quarter of batters faced. Chicago’s fall out of contention made him one of the top starters available at the deadline.
A trade sending Giolito alongside reliever
Reynaldo López to the Angels looked like a boost to his market value. Joining a fringe contender gave him an outside shot at a playoff berth. More meaningfully for his free agency, it took the qualifying offer off the table, as players who change teams midseason can’t be issued the QO.
That’s not how things played out. Giolito was one of the worst pitchers in MLB from the deadline onwards. He made only six starts for the Halos before they placed him on waivers, dumping the remainder of his salary after the team fell from contention to help limbo underneath the luxury tax line. Giolito was hit hard for both Los Angeles and the Guardians, who snagged him off the waiver wire at the end of August.
Over his final 12 appearances, he was tagged for a 6.96 ERA through 63 1/3 innings. He was staggeringly prone to the longball, allowing 21 homers (nearly one in every three innings) over that stretch. His walk rate also spiked. He handed out free passes to nearly 11% of opponents after issuing walks at a manageable 8.3% clip in Chicago.
Short of a major injury, it’d be hard to draw up a more frustrating final two months before free agency. That said, there’s a lot in his career résumé that made him arguably the top reclamation target in the rotation class. Giolito turned in upper mid-rotation results between 2019-21, combining for a 3.47 ERA with an excellent 30.7% strikeout percentage despite the hitter-friendly nature of Chicago’s Guaranteed Rate Field.
He has allowed nearly five earned runs per nine in each of the past two seasons, albeit for different reasons. His 4.90 mark in 2022 was attributable largely to a .340 average on balls in play, by far the highest rate of his career. That dropped to .274 last season, and his early-season results again painted the picture of a solid #3 starter. Then came the late-season homer barrage that left him with a 4.88 ERA at year’s end.
The longball has always been a bit of a problem for Giolito, but his second-half home run rate is unsustainably high. Boston is betting on positive regression in that department, hoping that’ll result in mid-rotation results. While Giolito’s whiffs are down from his 2019-21 peak, he still misses bats at an above-average level. Opposing hitters have swung through 12.2% of his offerings in each of the last two years, which tops the 10.8% league mark for starting pitchers. His fastball sits around 93 MPH and he misses a decent number of bats with both his changeup and slider.“