If they came out together and said it, then it might work but wouldn't that be against the CBA? I know the order signings happen are manipulated frequently, the Lakers are doing that right now, but agreeing on a deal a year in advance is different than asking someone to wait a week.
I don't see it going over well with casual fans. While the people here can see the reasoning behind it, we're not the people who buy the majority of Suns tickets. Most fans would see that as "Sarver being cheap" and not understand they why behind it. It would definitely require some assurance from Booker to be able to sell it to the fans as a good thing though. Even then, I think there would still be a large amount of people claiming the sky is falling for not getting it done immediately.