I absolutely believe there are several coaches who "DO KNOW JACK" about this engine. I did not play under the old engine, but the more I play and the more I hear from the coaches who did, the more I understand the complaints/issues/differences.
Its pretty clear that the passing game has some advantage in this current engine, but that does not mean everyone can pass like a crazy fool. There are a few coaches who have hit on the right combinations and absolutely destroy opponents. Its also clear that you absolutely CAN run the ball in this engine. Again, not everyone can do it.
I do believe that talent is king, but there are some coaches (dare I say....the great coaches) who are able to get more out of their players than the skills/attributes might warrant, when viewed by other coaches. It seems to me that that is like real life. Top 5% of coaches get more out of their players than other coaches could do.
In summary, the point is that the great coaches will find a way to win, within the limits that the game provides. The rest of us will just keep trying and maybe, with enough analysis and effort, find the "key points" that will allow us to become great coaches also.