Jeffress has far outperformed his FIP throughout his career: 3.10 career ERA and 3.66 career FIP. He really profits from the shift because throws more GBs than average and gets plenty of DPs.
His super low ERA in 2020 was not going to last, but gotta love how he sticks to his game plan and doesn't give in to hitters. Does a really good job staying away from middle of the plate.
Yeah, let’s hope that Kimbrel can regain the closer role but Jeffress has filled in admirably so far and figures to be important rest of the way too in whatever role.