It seemed valid to be concerned about Thomas' lack of physicality during the pre-draft process -- his listed measurements of 5-foot-11, 175 pounds appear pretty generous. The No. 63 overall pick put those concerns to rest by showing above-average potential on both sides of the ball. He stays within himself, lacing the ball to all fields while taking his fair share of walks (8.9 BB%) and rarely striking out (13.6 K%). In addition to showing the potential to develop into a .300 hitter in the big leagues, Thomas puts his plus speed to good use on the bases (12-for-17 on SB attempts in 272 PA). It is possible that he could develop enough power to hit 10-to-15 home runs in a good year, but it will be his batting average, steals and runs that drive his fantasy value. The Diamondbacks will send him to the Midwest League for his first full season. He was one of the younger high schoolers in his class, and won't turn 19 until April 28. Read Past Outlooks