The Astros initially scheduled Backe to make five rehab starts, but Cecil Cooper indicated that the righthander might make six.

“Probably two (more), I would think,” Cooper said when asked if Backe would make one more start.  Link

Geary will do nothing baseball-wise for the next five-to-seven days.

“We’ll see after that,” Cooper said. “I hope it’s not more than 15 days. Inactivity, not pitching for a week will probably help calm it all down, and we can get it cranked up again. Hopefully then [he'll throw] a couple of simulated [games], couple of ‘pen sessions. It’s only two weeks.”  Link

So in about 2 weeks the Astros will have 2, maybe 3 pitchers, counting Valverde coming off of injuries.