The next season, Duffy was back in the rotation and stayed there until struggling in late August and September. He finished that season in the bullpen, posting a 0.00 ERA in six appearances.
Hmmm. The Royals have converted many starters (Wade Davis, Luke Hochevar, et al) into shutdown relievers in recent years, but the decision to attempt the same with Duffy was debated. The Royals liked Duffy's success out of the bullpen so much that he started last season in that role. He didn't disappoint, posting a 3.00 ERA in 16 games.
