Trembley, who managed the Orioles for nearly three seasons, from June 2007-10, had a record of 187-283 with Baltimore. He’s spent the last two seasons in as Atlanta’s minor league director of field operations.
Trembley pointed out that Porter played for him from 1995-97 in Daytona when he managed there.
The Astros haven’t decided on Trembley’s spot, but fired bench coach Joe Pettini on Friday.
He hasn’t been back in Baltimore since he was fired in June 2010. Trembley was replaced by Juan Samuel for two months before Buck Showalter took over in Aug. 2010.
The Astros make their first American League appearance in Baltimore from July 30-Aug. 1, and Trembley’s looking forward to it.
“I think the world of Baltimore. I’m appreciative of the experience. I’ll get the opportunity to catch up with a lot of people,” Trembley said.