Ginn, a former first-round pick, hasn't been what you'd call productive. From his rookie year to his second year, he jumped from 34 to 56 catches, and it looked like he was progressing. But last year, he dipped back down to 38 catches and 454 yards.
Even worse are Ginn's yards-after-catch numbers. He's a little guy at 5-foot-11, 180, so he's supposed to have gamebreaking speed and elusiveness, and his YAC numbers have gone from 5.1 his rookie year, to 3.6 in '08, to an astonishingly bad 1.3 in '09.
That's less than the distance that would be gained by a 5-11 man simply falling forwards.
So the Dolphins, with Marshall in the mix, have even less use for Ginn now. Marshall, Greg Camarillo(notes), Brian Hartline(notes) and maybe even Davone Bess(notes) are ahead of him on the wide receiver depth chart, and while Ginn does have some value as a kick returner, that's not reason enough to keep him around at his current first-round-pick salary.
Unfortunately for the Dolphins, for that same reason, he's difficult to trade. The Miami Herald's Armando Salguero says this about Ginn's value:
One NFL personnel man has returned an email on the topic and he confirms Ginn is on the market. He also said Ginn would have different value for different teams, with most showing no interest. He said someone might, might give up a fifth-round pick because Ginn's only 26 years old and has elite speed that is "tempting."
It's probably best for all involved for Ginn to find a new home somewhere else.