But the point that should be made about this is that Duffey was a solid MiLB'er that came almost out of nowhere and teams didn't have great scouting reports like Brock says.
I don't know if I'd say he came out of nowhere. It's not like he skipped the upper minors or came straight from Cuba or Japan.
His worst start that year was his MLB debut. His last two starts that year were against teams he previously faced, and he did just fine. Neither of those facts fit neatly into a "lack of scouting report" theory. He also started 2016 with 4 solid starts in MLB, 3 of which came against teams he previously faced in 2015 (with 2 of those coming against the teams he faced twice in 2015).
It's worth noting that Duffey was dealing in 2015, minors and majors, to an extent that he had never done previously or since. Even before his MLB debut, his 2015 minor league marks of 0.1 HR/9, 7.8 H/9, and 8.0 K/9 were all career bests.
I suspect that, like many other players, he has difficulty executing and repeating his best approach. I'd like to see him get a bit more of a chance to try as a starter, although I am certainly not closing the book on him in relief -- he's 26 years old with 2 option years left, there is plenty of time to get back to a relief role if need be.
Edited by spycake, 21 April 2017 - 10:37 AM.