This is the answer he gave during his conference call after being named OC:

I’ve been exposed to a lot of different offenses. The first thing we are going to do is sit down and see what the Minnesota Vikings did well last year. If they did something really, really well and their players are good at it, there is no reason to change it. We are going to take pieces from other places I’ve been, then take pieces from Philadelphia. At the same time, obviously, there are a lot of good things that the Minnesota Vikings did that we are going to continue to do. We are going to mesh a bunch of different ideas and things that the players will be comfortable with, number one and things the coaching staff will be comfortable with, number two.