Ginn has yet to speak to the media since his poor performance Sunday in a loss to New Orleans. He didn't line up with the first team during the portion of Wednesday's practice open to the media, raising speculation about a lineup change.
"Just shuffling some things around in practice, doing some of those things, just make sure everybody is on their toes," coach Tony Sparano said.
When asked if Ginn had lost his starting job, Sparano said, "We'll see where we are at the end of the week.
"I'm just kind of upsetting the whole apple cart, and let's see how this thing goes. I don't want to say yes, I don't way to say no right now. Today we just said, let's let it fly. We've got five guys there that are playing this position, so let's let them all work and see where we go from there."
Rookie Brian Hartline took Ginn's place with the first-team offense during the open portion of practice. Against the Saints, Hartline caught a 67-yard pass that set up a touchdown, and he finished with three receptions for 94 yards.
"When you get the opportunity you've got to take advantage," Hartline said. "And if you can do that, hopefully you can get more and more."
The Dolphins (2-4), last in the AFC East, are on the road Sunday against the New York Jets (4-3).
Ginn dropped three passes against New Orleans, including one that deflected off his hands to safety Darren Sharper, who returned the interception 42 yards for a momentum-changing touchdown.
Ginn has yet to fulfill his projected potential since being taken with the ninth overall pick in the 2007 draft. This year he has 18 catches for 211 yards and one touchdown, and ranks third on the team in receptions behind Bess (26) and Camarillo (19).
Ginn didn't talk to the media after Sunday's game. On Monday he said through a team spokesman he would talk Wednesday, but didn't.
His silence coincides with Sparano opening a news conference Monday by taking blame for an ill-advised timeout, saying he wanted to be accountable for mistakes because he expects the same from his players.
Copyright 2009 by The Associated Press
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