They say statistics in spring training don’t matter much. For the Astros, though, some of the numbers are turning heads. For better and for worse. About halfway through spring games and only three weeks from opening day, Jeff Luhnow and Bo Porter may portend the Astros are right on track, but it’s hard to ignore numbers like .097 or 25.20. Some players, in fact,_must be looking over their shoulders, wondering if they’re destined to break camp with the big club. Biggest concerns. Rotation. The Astros have long held that several pitchers are vying for the last two spots, meaning that the top of the rotation is Bud Norris, Lucas Harrell [...]