The main issue I have is Sarries forwards tend to make the Sarries backs look good. Farrell is getting the armchair ride of his life and even some like Barritt isn't a liability because the forwards give them such good ball. I worry Jones may go the same way as Lancaster to start with by looking at Sarries dominance and selecting Sarries backs with other clubs forwards.
I agree with the above. Also a big part of the reason Sarries works is down to culture and cohesion. With obvious massive amounts of practice on a specific game plan that everyone is happy to follow.
Very tough to emulate for an international team like England. No matter how fun Gustard can make defence drills!