Arrieta had poor FIPs with the Orioles, too. So does the rental Chen; so does Gausman (4.46 this year). The Orioles' pitching philosophy seems to mandate heavy fastball use: Gausman, Arrieta, Strop, Chen, Bedard, and Tillman have ALL thrown between 60% and 70% fastballs in *every* year they got meaningful time with the Orioles; the lone exception being the year Bedard through fewer than 60% and was traded (for Tillman and Jones) in the offseason. The Orioles are known to have weird ideas about pitching; remember Dylan Bundy being told to shelf his cutter and throw more sliders for his health? We solved the goofy pitching philosophy problem for Arrieta, and as a prospect Tillman was more highly rated going into the 2009 season. In short: The Orioles have no idea how to get a pitcher to pitch, we can fix that problem, and Tillman is likely quite valuable to us in that circumstance. Let's get him. Also of note: Orioles fans at least seem to have tired of him. He really may come decently cheap. If our FO traded every guy who Cubs fans tired of, our roster would consist of Kyle Schwarber, Jake Arrieta, and maybe Jason Hammel.