The knock on Diaz coming into 2018 was the total absence of in-game power. He did little to quash that narrative, totaling a mere four homers in 546 plate appearances between Triple-A and the majors, but at least he started to make some adjustments. Diaz shaved nearly six percentage points from his groundball rate at the big-league level (from 59% to 53.5%) while adding more than four percentage points to his flyball rate. His average launch angle was still among the lowest in baseball, but 4.4 degrees is a big improvement over 0, and with that, he was able to tap into some gap power. Over-the-fence power may never come even with further refinement, but Diaz has strong plate skills (15.8 K%, 9.2 BB% last season) and with regular playing time, he could be a nice source of batting average. The question is whether that playing time will come. Following an offseason trade to the Rays, it seems likely. Read Past Outlooks