"I told him we'd get into more details the next couple of days," Wade said.
The Astros are already starting four rookies on most nights -- first baseman Brett Wallace, shortstop Angel Sanchez, third baseman Chris Johnson and catcher Jason Castro -- and considering they want to get a good look at the youngsters, there's not going to be a lot of available playing time.
"Fewer is better, unless they're going to play," Wade said. "Obviously, with the changes we've made and the fact so many younger players are here now that need to play to get the experience, it will probably be a very, very small number."
When asked if 19-year-old pitcher Jordan Lyles could be among the callups, Wade said: "I'm open-minded to everything at this point."