There are certain teams around the league that over the course of time and influence tend to gravitate toward producing an identity, or at least elements of one, that seem to be taken from another team. This is a process that occurs when prominent members of one organization move to another and draw others there with them.
We saw this most prominently in Arizona after Mike Tomlin was hired by the Pittsburgh Steelers to be their head coach, prompting offensive coordinator Ken Whisenhunt to take a job as head coach of the Cardinals.