A starting point for congregational transformation is to engage in an in-depth assessment of the congregation using various research methods. If you have a congregation of tacticians, this may work. Show them the gap between where the congregation is and where it could be. Do some historical research to demonstrate that the congregation once did not have this gap between performance and potential.
While a starting point, closing the gap should not be the focus of forward action. Living into God’s full kingdom potential for your congregation should be the focus. This is often more than just closing the gap.