So running a primarily run and gun sytle; then using a lot of screens and rolls, almost all of which brings the bigs out of the paint to a few steps in from the 3-point line, the high post, or elbow area (where bigs who can shoot would be valuable...like in the european style of basketball) to create early perimeter shots to maintain that quick pace and create more possessions = a brand new system?
The run and gun style has been around before MDA, and utilizing a lot of screens and rolls to get perimeter shots in leagues where the 3 point line was closer (shots were easier) and there was no defensive three seconds rule...so forays into the paint for lesser athletic players wasn't exactly preached, also isn't something that MDA created.
I guess he's the first to bring the two together, but he's using a mindset (Eurostyle) that's based on a game with a different set of rules, regulations, and players who are taught the game from a different perspective...with the adjustment that needs to be made to adapt that style of basketball to the NBA...speed things up.
The offense seems too hit or miss, and it doesn't really generate many easy shots in the NBA. Those perimeter shots might be the easier shots in European leagues, and it puts on a good show in the NBA when the shots are falling, but when they're not, there doesn't seem to be any way for us to generate easier shots other than STAT or Melo going one-on-one.
By the way, I didn't really find any breakdowns of the offense via google, just a bunch of sites trying to sell DVDs, playbooks, and shit. You can find breakdowns of the Triangle offense, Princeton offense, 4-out 1-in motion offense, ball screen oriented offenses used in Europe, etc.
I didn't read McCallum's book tho, maybe that would help shed some light on how this isn't a style developed for Euro leagues with some run and gun thrown in. I guess I gotta pick up the book.