What about playing like the Magic or Suns - can it be done?
Not until you get much better players. I looked at your team ratings for your last game and you have a crappy team. Even though you are England DIII, the comparable teams in my USA D V are putting up better ratings. In essence, you are much closer to the bottom than the top in terms of quality.
I say this not to be harsh, but to be realistic. If you want to play like a top NBA you need to develop and acquire better players.
Until then, keep it simple. You have a balanced attack (INEPT low in both) so play base offense and let the game engine look for your opponent's weaknesses.Play the defense that could thwart your opponent's preferred attack. Otherwise, stick to MtM.
Don't get fancy until you beef up the quality of your players. Decide on a training scheme, then pick an offense that will eventually work with that scheme.