I do like the Gortat + Howard combination though. I think that is that the best big man combination on the defensive end of the floor in the league. Also the best rebounding combination.
They are pretty poor offensively though so the Magic need to put a lot of offense on the floor alongside them. They should have three of the following four players -- Nelson, Redick, Carter and Lewis -- beside them at all times to minimize their weaknesses. They need scorers and they need shooters to keep some semblance of offensive balance.
Playing Jason Williams + Mickael Pietrus alongside Dwight and Gortat is a bad idea for Orlando (good for Boston).
It will stop the Magic from realizing how effective Dwight and Gortat could be for long minutes against the Magic. Not just for a 2-5 minute spurt at the end of the quarters.