After signing Jordan McRae to a 10-day contract, the Cavs still have an open roster spot that they could sign someone right now. If they decide to not bring McRae back for another 10-day deal, they could then have two spots available to bring in players.
Dorell Wright seems like a perfect bench fit, should he choose the Cavs among his reported options:
There are no reports that the Cavs have targeted Wright, but he would make a lot of sense. After missing out on Joe Johnson, who wanted playing time more than a chance at a championship ring, Wright is the type of player that could fit for the Cavs.