Here's my guy for SS...
He platoons with Keppinger and between the two of them we get a .380-.400 OBP and about a .500 SLG batting in the #2 hole. Yes, his defense is bad, just as bad as Keppinger's, but with that kind of OBP, I really don't care. Whatever outs we lose in the field, we'll more than make up for at the plate.
That platoon might also work at 3B, although Fontenot hasn't seen much time there. Or you could put the pair at 2B and move Phillips. Several options there.
His contract is nothing, and I bet he could be had for fewer prospects than Khalil Greene. Maybe Rosales and Maloney would do the trick. Those are two guys with no future in Cincinnati.