This ecclesiology is triumphalistic. It worked then, so it should work now' is a dangerous fallacy. Indeed, the churches which are doing it like their grandparents did are dying, all over the world. Today's minds must never be set. Our basic gospel beliefs do not alter, but certainly the way we 'package' them must.
Most Western churches are static or declining numerically.
Lack of creativity. The hot topic right now in business around the world is creative problem solving. The biggest challenge is connecting innovation with existing business. Books like Betty Edwards' Drawing on the Right Side of the Brain are selling millions of copies. We humans have creative ability because we are made in the image of our creator.