Cosart was considered to have an outside shot of making the opening day roster. A little over a month after Cosart reported to his first major league camp, the League City native was on the move back to minor league camp. Righthanders Cosart, Ross Seaton, Jose Cisnero and lefthander Brett Oberholtzer were all sent back to the minors to continue their development. “They know how to play the game, and they show you how to act on and off the field. Jarred Cosart’s two gloves rested on top of his overflowing Astros duffle bag, which he placed on the second row of his extended cab truck. “It’s always difficult when you have a highly talented young player that you look at the stuff and you say, ‘Wow, when this guy gets here, he’s probably never going to go back,’ ” Porter said.