Here is part of Dever's write up on Soxprospects (
underlining is mine):
http://soxprospects.com/players/devers-rafael.htm
Arm: Solid-average arm strength that can play at third base. Needs to improve footwork, which impacted his accuracy.
Field: Doesn’t look pretty, but
can make the plays at third base. Limited range and on the stiff and rigid side when fielding ground balls.
Will be given every chance to stick at third, but could move across the diamond to first base eventually.
Run: Below-average speed at present. Not a part of his game.
Career Notes: Suffered a stress fracture in his right ankle while sliding during the 2014 fall instructional league, but was expected to have a normal offseason and be ready for spring training. Was one of the top prospects in the 2013 international free agent class.
Summation: All-Star potential regardless of position due to his value at the plate. Potential to be a plus hitter for average with plus-to-better power. One of the most exciting young players in the system in years. Mature approach for his age, has shown the ability to handle aggressive assignments.
Will stick at third base for the foreseeable future, but if his bat develops as projected, it would profile at first base.