I'm not sure I'd only protect top-10 this season. There's a good chance the Jazz end up in the 11-12 range and the prospect pool is pretty good even that late. Best I'd offer for an UFA with less than a 25% chance of staying is the worse of the 2017 picks. But Suns aren't going to want a pick that far out.
Dragic is a great player. But bringing him in results in more wins and puts Dante back on the bench...unless you move him over to SG. Just not sure you want to mess up team chemistry and dynamics for a player who is extremely unlikely to remain.
I don't think the Jazz need more players to develop. We have enough. Exum is 3+ years out if he keeps playing like this, so there may be room to resign Dragic. I'd be happy if Dante could move back to the bench. Either way, we need a strong 3 rotation... Exum/Burks/Dragic would be good. Plenty of minutes for those three.