I would love to see them get Lopez, would only make Brooklyn worse. After that who else do they really need in the FA market. They would have MCW, Middleton, Parker, Giannis, and maybe Lopez. They need more of a bench, because as of their current starting squad they the OKC of tomorrow. I feel like this cap space was acquired to be able to match any offers to Middleton. Even tho they can sign someone, and then match Middleton afterwards, I don't really see them doing that, unless it is used to sign role players.
Edit: Only after the fact I wrote this I noticed that Lopez would eat up most if not all of their cap space.