Better to say he has the 4th best WAR on a pitching staff with the 14th best ERA in the AL. So good point.
2d year is relevant because Bloom picked him up on rule 5, so he was kind of an unknown and to some degree still is. Closer? Longish reliever? Starter? 2d year is also relevant because no one knows for sure what his durability is. He's started 9 games, pitched in 30, with 77 innings total. Only four starters--Pivetta, Wacha, Hill, and Eovaldi--have pitched more innings. That said, 77 innings ain't that many if it includes 9 starts. Pivetta has thrown 160 innnings.
All that said, he has one of best repertoires on the team--maybe the best. But, as we saw tonight, he can make mistakes.