In 1988, Jerry Glanville famously told a referee, "This is the NFL which stands for 'Not For Long' when you make those kinds of calls." He was of course implying that the referee would lose his job if he didn't clean up his act.
Glanville's statement has taken on a completely different meaning over the years. These days it refers to how hard it is to reach the NFL mountaintop, and even harder to stay atop it.
Teams must adapt if they expect to be relevant year after year. The league is too talented for teams to be complacent. If they're idle they will get passed by—or more likely run over.
After last season, the Detroit Lions can consider themselves relevant. They haven't reached the mountaintop by any means, but if they hope to keep their momentum going forward, they can't be complacent either. They must adapt.
It's a fine line knowing what to change and what to keep the same. They won for a reason; drastic changes might only weaken their strengths. The Lions don't need to do this.
They do need to fine-tune some things though. Here are some key adjustments the Lions should make that will help them be successful this season.