As a Royals fan I firmly believe Davis is an amazing closer and before that he was a lights out setup man. His only weakness is that he likes to come in at the beginning of an inning and not inherit base runners. I think that some of that has to do with how he started to prep and get ready as a setup man for Holland, when KC had the lights out H-D-H 7-8-9th innings. He nearly always started warming up with over half an innings worth of time, came in to some warm up pitches without base runners or pressure. It carried over to his role as a closer to some extent as well. He generally pitches best when he doesn't have to worry about giving up a hit for an RBI.