Matthew Boyd
If this is based on 2017 performances alone, this spot should go to Matthew Boyd.
Boyd’s overall numbers (5.27 ERA, 1.56 WHIP in 135 innings) won’t jump off the page.
However, the left-hander ranked third on the team behind Fulmer and Justin Verlander in fWAR with a 1.9 number and was much improved down the stretch.
He logged a 3.92 FIP and 30 strikeouts in his final 36.2 innings, which spanned six starts and included a near-no hitter against the Twins.
Daniel Norris
If this is based on pure stuff alone, Norris should probably claim this slot in the rotation.
However, Norris has yet to put it all together in the Majors.
Armed with ace-like stuff, Norris has struggled to pitch late into games. He pitched into the seventh inning just twice last season and failed to put hitters away early.
The fellow southpaw also regressed from an encouraging 2016 (3.93 FIP, 3.94 SIERA and 9.22 strikeouts per nine frames in 69.1 innings) last season.
In 101.2 frames last season, Norris turned in a 4.39 FIP and a 4.94 SIERA. While his strikeouts per nine innings plummeted from 9.22 to 7.61, his swinging strike percentage didn’t dip as much, dropping from 10.5% to 9.1%.
If the ex-Blue Jay can pitch more efficiently while missing bats, he has a chance to be successful.