(1) He remains one of the best playmakers in the game. His court vision, ability to break down defenses, dictate pace and leadership are all Magic needs and he does them at a high level.
(2) Nash creates an interesting trickle down effect to the Magic roster. He allows Nelson to move into a 6th man role, a role that at this stage of his career he is more suited for.
This allows JJ Redick to move into the starting line up and J Rich and Hedo to move into the second unit, creating great depth and a serious offensive punch coming off the bench. The lack of need to have Hedo's playmaking in the starting unit allows for the wing position to be filled with an athletic defensive wing.
(3) Steve Nash is a floor general and a natural leader. On the court he runs the offense, plays do not need to be called for him- he is experienced and been through the battles enough to know better than most coaches what needs to be done. This will become a factor if the Magic do indeed rid themselves of SVG.
One of the top candidates - Mike Malone, is a defensive specialist but there is concern over his abilities on the offensive side of the equation. Brian Shaw, the other top candidate, is likewise a defensive minded coach who spent years mentored by the great Phil Jackson. But those years were nearly all spent operating a triangle offense. This style and the current Magic roster are incompatible but Steve Nash would allow for that offense to work.
Nash has stated that he feels he can continue to play effectively for 2 to 3 more years. For the Magic this is a scenario that is feasible. Offering Nash a reasonably priced contract that offers him the potential to stay in the NBA for 3 to 4 more years is not a huge risk.
Of course if the Magic feel they have a quality chance at D Will or CP3 in 2013 or they are intent on moving Howard then this subject is moot.
1st Unit: Nash / JJ / (Defensive Wing) / Davis or Anderson / Howard
2nd Unit: Nelson / J Rich / Hedo / Anderson / Davis
Reserves: Duhon / Liggins / Q / Clark / (4th Big)