I think this is pretty far fetched. Who does Chicago have to give for Ogunleye? Fish need rb, O-line, wr... right? Thomas hurt, not a great O-line to begin with so who are they going to deal to the fish and they have a few wr but nothing of real value.
The only thing i could see would be a multi player deal, rb, wr and picks for ogunleye and that isn't likely.