The Baltimore Orioles have sent top prospect Jackson Holliday back to the minors for more seasoning. On Friday, the O's announced Holliday has been demoted to Triple-A Norfolk, with outfielder Ryan McKenna called up to fill the roster spot. Holliday, 20, is 2 for 34 with two walks and 18 strikeouts in 10 big league games. It works out to a .059/.111/.059 slash line. Our R.J. Anderson recently dug into Holliday's struggles and found that, while he's been terrible at the plate, there were some reasons to be optimistic. Clearly, the O's believe the young man will benefit from more...