Engaging in a sign-and-trade deal featuring Ayton and Williams III would make a lot of sense for the Suns, especially if they don't think the former No. 1 pick is worth a max contract. Instead of overpaying Ayton, the proposed deal would enable the Suns to swap him for a much cheaper starting center in Williams III. Per Spotrac, Williams III is only owed $48 million over the next four years.
Williams III may not be as good as Ayton right now, but he offers a similar skill set. Also, in the potential deal that would send Ayton to Boston, the Suns could acquire more assets they could use as trade chips in a separate deal to further improve their roster around Devin Booker.