When I was studying clinical and health psychology there was a model that I was familiarized with that has been highly successful. It is called the scientist-practictioner model (or the Boulder model). It is a model of graduate training that stressed 50/50 research and practice. We spent lots of time doing therapy and lots of time doing research and much of the time the two were done at the same time. The theory is that the best clinicians are those who are up on the current research and the best researchers are those who know what it is like to really do therapy with real people. I have often thought it would make a great model for scholars and ministers alike.