Bushue pitched in five games in 2009 (2.42 ERA/1.03 WHIP) before stress fractures in his spine shut him down for the season, but still was good enough for Baseball America's 9th-ranked GCL prospect for 2009 and their Astros' 7th-best prospect following the season.
He spent 2010 in Lexington where he threw 133.2IP, allowing 129H/61ER, 114K:48BB for a 4.11 ERA/1.32 WHIP, which got Bushue the #3 Astros prospect ranking from FanGraphs, #5 from the Hardball Times and Keith Law, and #6 from Jonathan Mayo following the season.
Injuries saw Bushue go on and off the DL in 2011, a season where he threw just 85.1IP, 103H/47ER, 58K:17BB for a 4.96 ERA/1.41 WHIP.
In 2012 between Greeneville and Lexington, Bushue threw just 39.2IP, 59H/41ER, 44K:27BB for a 9.30 ERA/2.17 WHIP (18.82 ERA/3.00 WHIP in six games for Lexington). What happened? WTHB talked to Dave Borkowski and found that his injuries and execution were limiting his effectiveness.
In 49IP for Tri-City in 2013, Bushue allowed 40H/28ER, 40K:13BB, for a 5.14 ERA/1.08 WHIP. Best wishes to Bushue, who is still only 22, after all.