There is an incredible site out there, and if you have not been there yet, I encourage you to take a look. That site is overthecap.com, led by the marvelous Jason Fitzgerald. They are doing an incredible job addressing areas of the sport which just are not covered elsewhere.
Their most recent series of articles provides a fascinating look into each team in the league's roster makeup, evaluating the composition of each team's roster what they call "cap texture" and "roster texture." For a deeper explanation of the terms, here is the article introducing the concept of "texture.