What happened: Aaron Rodgers said Mike McCarthy's hiring persuaded him to return after he considered retiring last year. The 42-year-old described his decision as settled, leaving no opening for a 23rd season.

Why it matters: The firm timeline makes succession planning an immediate priority. His departure will close a career that includes four MVP awards.

What to watch: Training camp will show how the offense is structured around Rodgers in the final year of his contract.