Nick Saban announced his retirement this offseason after a historic career, ushering in a new era for Alabama football. It came after years of speculation that the coach could hang up the headset, but still came as a surprise to many who watched him on the Crimson Tide sidelines since 2007. Now a few months into retirement, Saban joined The Paul Finebaum Showon Monday for an interview. He opened up on why he made the decision, citing his age as well as the changing landscape of college sports with NIL and the transfer portal. “We just adapted to (NIL),” Saban said. “We actually won when we had…