My view of McD is in the process of changing. He does seem to be coaching differently, his 4th down gambles come to mind, while still maintaining what he's always been good at - building a solid culture.
I also think McD may be benefiting from a shift in the NFL as it moves from total offensive domination to a more balanced defensive/offensive split. Just look at the return of the RB to prominence and the diminished importance of having a stud WR.