Compare the stats over the past two seasons for righthanders Jameson Taillon, Taijuan Walker and Chris Flexen:
JT 321.2 IP, 4.08 ERA, 100 ERA+, 4.2 fWAR
TW 316.2 IP, 3.98 ERA, 99 ERA+, 3.9 fWAR
CF 317.2 IP, 3.66 ERA, 108 ERA+, 3.7 fWAR
The Seattle Mariners reportedly are shopping Flexen, who is two years younger than Walker and two-and-a-half years younger than Taillon. Baseball Trade Values devalued Flexen after Luis Castillo bumped Flexen from the Seattle rotation.
Many will point to Flexen's drop in fWAR from 3.0 in 2021 to 0.7 in 2022. However, Walker has never posted an fWAR above 2.5 and Taillon has not exceeded 2.3 fWAR since 2018.
Columnist Tim Britton at The Athletic projects Taillon and Walker with contracts in the four-year, $56 million range:
https://theathletic.com/3764820/2022/11/09/mlb-contract-projections-free-agent-pitchers/
Flexen is guaranteed a 2023 salary of $8 million in what MLB Trade Rumors reports is his final year of team control (despite Flexen currently sitting on two years and 107 days of MLB service).