To contend for a title the Jazz need a championship caliber roster.
Oh, and btw, what's your solution then? What's a "center" in your opinion? We're not getting Dwight Howard for CJ Miles and a future draft pick anytime soon. Would you then consider guys like Kendrich Perkins or Nene to be our missing pieces? LOL... Seriously, other than Dwight Howard, who the hell could be considered a dominate center? There aren't any! The NBA has evolved. Gone are the dominate bigs. Today's NBA is dominated by speedy quick guards, Drose, Kobe, Dwade, Rondo, CP3, Parker, Westbrook, Manu, etc and freak SFs like Lebron, Durant, and Melo.
Realistically, the Jazz need a superstar SF/SG. Those guys win titles. Dwade, MJ, Kobe, Manu, Paul Pierce, Ray Allen, win championships in today's centerless NBA. If the Jazz want a title, Raja and CJ need to go. Whether or not Hayward is the answer @ the 2 remains to be seen....