Ryan was hitting .149 going into Sunday's game, well below his career average of .256.
"It's not a forever thing unless he gets himself going," said Wedge, who had tried jump-starting Ryan by batting him second in recent games. "But I still want to give him an opportunity to do that. I know he's a lot better than what we've seen, but he has to go up there and defend himself and compete better than what he's been doing."
Left-handed-hitting Munenori Kawasaki started at shortstop Saturday. But Kawasaki wasn't regarded as a strong offensive player in Japan, and he went 0-for-3 and is batting just .194.
Thus Wedge went with Ryan on Sunday, along with all his right-handed hitters, against Yankees southpaw Andy Pettitte.
"Hopefully, a lefty today will help him, and he's hitting in the nine-hole and we'll see what happens," Wedge said.