Every year, teams are trying to find a new way to create an edge in building a contending roster. Last year, teams copied the Philadelphia Eagles approach to build a tenacious and deep defensive line which they rode to their first Super Bowl victory. Outside of that, every team seems to be trying to duplicate what the New England Patriots are doing on a yearly basis.
It may be early, but a trend that could be coming in the next couple of years is finding a young quarterback, grooming him and taking advantage of his cheap rookie deal to bolster the roster around him.