Less than 24 hours before the Astros were to make the No. 1 overall pick in the MLB amateur draft for the second consecutive year, their plans for 2013 were becoming increasingly similar to their actions in 2012. Two righthanded college pitchers (Mark Appel, Jonathan Gray) and two college third basemen (Kris Bryant, Colin Moran) continued to top the Astros’ draft board, with Loganville, Ga., high school outfielders Clint Frazier and Austin Meadows long shots. But after more than a year’s worth of in-depth scouting, background checks and in-person evaluations, there was little separation among the top four. Signability is expected to be a key factor in determining who will [.]