Jackson has always teased with his tremendous potential. He started turning it into on-field performance during the 2007 season. A former basketball standout, Jackson is a tremendously athletic outfielder who, upon being promoted from the South Atlantic League to the Florida State League, responded to the challenge by showing the ability to hit to all fields with power, speed and more defensive ability than he’d shown in the past. Jackson went on to Hawaii Winter Baseball after the 2007 season and continued to impress with his speed and bat. He’ll play the 2008 season at age 21 and could feasibly do it with Double-A Trenton. If things continue to click, he could be a fast riser in the Yankees system. (Source)

This is a pretty big accomplishment considering AJack wasn’t a top 100 prospect prior to the ‘07 season. He had quite a breakout season.

That being said, he’s still underrated.