NBA plays a very different game on offense. Byu should definitely NOT imitate NBA offenses. On the one hand, the rules are very different. On the other hand, the players don't have the skills/ability. Design a winning system. Lots of great coaches in college do it and don't try to make it like the NBA. Maximize you talent.
Obviously, don't do what a bad coach would do....i.e. BYUs old defense. I don't suggest implementing a soft or bad defensive or offensive scheme.