Pitching questions

So the Phillies suddenly sent Kyle Kendrick to the minors and recalled Andrew Carpenter. But Kendrick might not be down there for long because Jamie Moyer left today's game with an elbow sprain. Further complicating matters is that David Murphy suggests J.A. Happ is on his way back and Matt Gelb suggests that Ruben Amaro may have an ace, or some kind of pitcher, up his sleeve:

Ruben Amaro Jr. wore one of those patented smug looks on his face. The Phillies general manager had just demoted his fifth starter without listing a replacement in the rotation for him.

"I think we know exactly what we're going to do," Amaro said. "I just choose not to tell you."
[...]
That means a trade could be imminent. Amaro did nothing to dissuade that notion, saying Saturday's starter could come from outside the organization.

"We have other balls in the air," Amaro said.

{Happ was pulled early from tonight's minor league game. So, does that mean he's starting Saturday, or could he be part of an upcoming trade?}

They could have used the help tonight. In the 9th, Cardinals 7, Phillies 1. The Red Sox lead the A's 2-0 in the 2nd.