Buster Olney noted the Astros only have one player, starting pitcher Wandy Rodriguez, signed for 2013 and beyond. That means whoever takes over as GM doesn't have to deal with the mistakes of the past regime. However, it also means they are left with hardly any above-average talent. This is going to be a long rebuild.
Astros are rumored to be interested in bringing back former Astros GM Gerry Hunsicker. He led the Astros to four division titles and one world series appearance during his tenure.