Gilliam’s calling card is his raw power, which grades out as an easy plus from both sides of plate (and a little more natural loft from the left side). He’s an aggressive hitter who can get himself in trouble early in the count by expanding the zone, limiting his ability to find drivable pitchers once behind. When he does find the ball with the barrel he can do significant damage both to the gaps and over the fence. He’s a well below-average runner with a passable glove on the outfield corners, so there is a lot of pressure on the stick to develop into a true above-average playable power threat. That will mean tightening up his approach and more consistently working for pitches he can lift with authority. He’ll get a stiff test at Double-A in 2019 with a chance to up his stock significantly if he can produce.