They should go after the similarly talented Parsons for $12-$13 M even if they match the Hayward offer sheet. Considering that Jodie Meeks just signed a deal for over $8 M per year, I have a hard time seeing Deng getting only $6-$9 million from anyone. I think that this is going to be a crazy offseason. Guys are going to get paid. There's just too much cap space floating around AND the salary cap is going to go up for next several years. Teams are going to have to adjust their thinking accordingly. In just a few short years, the salary cap alone is expected to reach the mark where the LT cap is now. And that doesn't even factor in the new TV contracts. I also think that the NBA should have compensation above and beyond just matching the contract for a RFA. Unprotected first round pick should have to accompany the deal, but that's a different conversation.
The Jazz can't get a LeBron James or Carmello Anthony outright in free agency. They have to draft that guy and then pay him every penny that he's worth when his contract comes due. Until then, they need to draft the best players that they can and keep them around as long as possible. That's why they're going to match this contract. DL and company know what their limitations as a small market team are and they have to play by those rules. If they were winning, some of the rules change. . . but they need to get to that point again first.