Liddi, 23, was hitting second on Tuesday and playing third base while Chone Figgins was out of the lineup. Dustin Ackley hit leadoff for the third time this season.
"We're not sure where he's going to end up, but I like having a little pop up at the top of the lineup like that," Wedge said of Liddi. "He puts up good at-bats. He doesn't give away at-bats. I just feel good about wherever we put him.
"And I don't think he cares. He just wants to play. He comes here, he works his tail off each and every day, whether he plays or not. He just wants to be in there. So we're getting him in there."
After a nice start, Figgins hit just .209 in April and just .159 over the past 19 games.
"He's had some good days and some not-so-good days," said Wedge. "He's just been a little inconsistent for me right now."