Ken Rosenthal and Jon Paul Morosi are reporting (scroll down) that the Astros are among eight teams with interest in Billy Wagner.
Boston, Atlanta, Washington, Houston and Baltimore are on the list, according to Stringfellow, along with three teams that preferred to remain anonymous.
Only in Boston would he not be the closer. This theoretically makes sense for the Astros, who are most likely going to lose Jose Valverde to free agency. And even though Wagner is a Type A free agent, the Astros would lose their second round pick as they finished in the bottom half of MLB teams (the 1st-15th picks are protected). But if the Astros offer arbitration to Valverde and he declines, they would then get that team's first round pick (unless the signing team was in the bottom 15, in which they would get the team's 2nd round pick).
I just...don't even know.