Derby, most of the points you make from the studies into various sports, have been made many times on this forum over the last 4 years. This, by simple observation, not through scientific study. As Shane says, a coach is going to take the AFL by storm, simply by selecting players on ability, managing their training appropriately and allowing them to play attacking footy.
Defending against a team playing on instinct is much harder than defending against a team playing to set game plans, especially defensive game plans, and letting loose players like Harley (sadly not now an option, the Hills, Walters, Cerra, Wilson, Ryan & co would see us win more games than we lose. Provided their training workload is managed. If they are working their butts off on game day, they don't need to be run into the ground during the week.
