Sorry about that, jcmclmr1. Should've helped answer your question better. jsajsa is right. Your IQs are simply too low to run man. I'd start playing press only this season. If you want to move toward a man for next year, practice 15 on offense, 20 on man and only 5 on press, just to get the press IQs for reserves up to decent levels by end of season (so you can try for solid postseason run). Then next season, switch to 20/20 offense/man, and drop the press once man IQs get close to the press IQs. You might even try using 50 total practice for off/def until you're able to make the full switch, especially if you don't have many players with lots of potential. As for individual practice, drop it to 0 for any skill you get an email from the assistant coach about. That email means the skill has 1-2 more total potential, and putting 0 minutes practice into it will cause a VERY slow drop (no more than 1 a year). So it's much better to put those extra minutes into more improvable skills.
Against teams with top talent, go slowdown, to limit your fatigue and maximize starter minutes. You have a very good offensive team, and you have perimeter speed which can cause a lot of fastbreak scores. Stick with press for now, and I think you can do well, despite the low Def rating throughout your lineup. Good luck, and if you'd like more info, feel free to site mail me with specific questions.