I personally think the time away may have/will make Fisher a better coach. He did a good job in Tenny featuring George, McNair, and their talents before trying to make something of V Young and taking advantage of a couple of special C. Johnson rushing seasons.
With that said, I think he came into this situation with an overhauled roster, new staff, and a year off. I personally think he was relatively conservative but based on having a chance to see things like the Pistol/Read-React, getting to know and chose his players for another year, and having more cohesion with his staff I think you will see someone more "cutting edge" than some of us would have thought.
I honestly think you are going to see some more bold moves than we saw last season and maybe don't expect from someone like Fisher