The leading teams thing is interesting, because all they essentially are doing is trying to get the team to overcome the 5 reasons teams fail; trust, conflict, commitment, accountability, and results.Buckley has installed the Leading Teams philosophy in an attempt to change this culture. Leading Teams has been a successful strategy at Geelong, Sydney and Hawthorn so I am reluctant to criticise it. .
Now the issue I would want to know with their model is how they apply it. 40 people is too big to have a healthy team, a football team is a really a collection of sub teams. So what I would hope they are doing is putting all their energy into the leadership team, and fostering the right behaviours there. From there the leadership team should be able to direct the sub teams (forwards, back, mids, etc).
And since Shaw and Thomas are no longer at the club, I'd say it's working just fine.