That is a very good team. Plenty of ast, stls and 3's and FT% with: Foye, Wade, Manu, JJ, Iverson and Kirk. Then more than servicable big men (or guys that get big man stats) in Marion, Lopez, Nene, Al Jefferson, O'neal. Then good guys to boost other cats in Martin, Dunleavy, Harrington and Pietrus. Very good balance.
I had Brook and Foye and sold them high. Depending on how you got Marion, that is the only guy that is really "under performing" (but usually only if you drafted him high). If you traded for him, you probably got a good deal as the owner was probably frustrated.