The only way this move makes sense is if they've already arranged a trade with another team. We've got young, cheap CBs who are our future, and should get the snaps.
Byron made sense as trade bait because some team would want to see what he had. We've got younger, cheaper, and by all indications, better guys we'll own for longer.
EDIT: Apparently the contract is non-guaranteed. So give it a shot. I still think it makes the most sense to trade him to a team that needs a starting CB. Seattle?
I wonder, did we do this *before* the draft because if we traded him away during the draft, the new team wouldn't be able to exercise the option themselves?