The Jazz should first focus on re-signing Hayward or trying to sign Chandler Parsons if possible (I don't think they can afford to do both). They should then focus on extending Burks and Kanter, which will affect their numbers after the coming season. As I've said in a previous post, I think they both are on the verge of busting out, what with a new development-minded coach and all, and that their value is as low right now as it's going to be.
Once they know where they are salary-wise this year and next, they should THEN turn their attention to other free agents. Lock up the core, and then go from there. I have a feeling they won't do things in that order though.