Astros general manager Jeff Luhnow may enter the 2012 season with largely the same roster he inherited, but the new executive may also have a trick up his sleeve. On the job for a month, Luhnow has made a trade and added two people to his baseball staff. Luhnow remains "open for business" on the trade front, but it appears pitchers Wandy Rodriguez and Brett Myers and outfielder Carlos Lee will head into Spring Training wearing Houston uniforms. "We're still trying to figure out what we can do to try and improve this club for the long haul, and possibly this year right out of the gate," Luhnow said. "We're not going to be players in free agency, and everybody knows that. A lot of our activity might happen closer to Spring Training, and maybe during Spring Training. In terms of moves we might make, it won't be anything major."