How Bright is the Future for the Suns?

Well, unless you live under the proverbial "rock", you are aware the the Phoenix Suns have traded Shawn Marion and Marcus Banks to the Miami Heat for Shaquille O'Neal. As life time fan of the Suns, this trade has caused mixed emotions.

• First off, Shawn Marion has been vital to the Suns over the last 3 seasons. He is the teams best defender and has the legs to keep with with Steve Nash on the break. If you could mold a perfect player for Mike Dantoni's system, it would be Steve Nash, but he would be followed up in a close second by Marion.
  
• In some ways, the trade leaves fans with the feeling the Dantoni, and GM Steve Kerr for that matter, have given up on the Phoenix style of play. And it is that style of play that has made the suns the most fun team to watch over the last 3 seasons.
  
• The Suns have always needed a great center. Looking back over the last 20 years, it as always been the missing link. There has been no shortage of great guards (KJ, Jason Kidd, Thunder Dan Etc.) and forwards (Barkley). The modern era Suns have never had a true 5-man that could dominate.

Can Shaq be this missing link? Can he keep up with the offense and still have the needed impact on defense? By May Dantoni and Kerr will be the hero's of the organization, or be responsible for the 340 pound, 10 million per year burden that is pulling the team back to mediocrity