Just to get it on the official record, that one guy the Astros had for about 20 minutes, Marco Duarte, was traded to the Red Sox for infielder Marwin Gonzalez.
Gonzalez is a 22-year old 6'1" 186lb switch-hitting infielder who came up in the Cubs' system. In six seasons, he has 1973 PAs, with a .258/.305/.352 line, 272K:116BB.
In 2011, he split time between Double-A Tennessee and Triple-A Iowa, hitting a combined .288/.343/.400, with 48K:33BB (465 PAs).
Red Sox GM Ben Cherington:
"Yeah, we took him on behalf of the Astros. There was a guy in the minor league phase we wanted to take higher and so it was simply we took a guy for them in the major league phase and they took a guy for us in the minor league phase.”