You can't make a trade with a pick you may not have. If they trade a pick in that draft it would have to be the 2nd rounder.That can always make a "conditional" trade, by making the condition a conditional first, based on having that pick. They simply assure the other team that they won't lose that first rd pick to Cleveland.
BTW, I wonder if there are wording in the deal that Verse can't be traded to the NFC West? That to me is more likely to happen if their timeline takes longer than expected or if a team innthe west simply blows them away with an offer.
Can't trade a pick that has a condition on it belonging to another tram already.