The 2015 Major League Baseball draft has come and gone (for information on who was selected and scouting reports/stats you can check that out here) and now we get to see those players, as well as some others that were already in the organization officially begin their 2015 years with the Arizona League Reds or Billings Mustangs. Both teams kicked off their respective seasons last week. While some of the names to follow are obvious, there are some lesser known names at the two levels that warrant keeping an eye on. Below are five guys to keep an eye on from each roster.