With the Minor League seasons winding down, the farm system focus will start shifting to the fall and winter leagues. The Yankees announced today that they'll be sending Mason Williams, Tyler Austin, and Peter O'Brien to the Arizona Fall League as their position player representatives. Williams posted a .317 wOBA in 461 High-A plate appearances before being promoted to Double-A Trenton. He hasn't hit much there in a limited sample size and he could certainly use the extra ABs to start sharpening up his hitting approach. Austin also had a disappointing year at the plate, hampered by a wrist injury and the negative effect of playing in Arm & Hammer Park. He's rehabbing from that injury and is reportedly close to playing in GCL games, so getting some more ABs to make up for the lost time makes sense. O'Brien has hit 20 HR in under 500 PA spread across Low-A and High-A ball. The team has been experimenting with him at third base since the promotion to Tampa and he would presumably use his time in Arizona to work on adjusting to the position.
No word yet on who the 4 pitchers will be, but this is as good a group as any to select from the hitting pool. Williams and Austin are both still top 5 organizational prospects and could use a strong fall showing, even in a notoriously hitter-friendly league, to re-establish their statuses heading into 2014.