NFL training camps open this week, and questions abound.
Who will start the season as New England's quarterback? Have aging stars who have switched teams improved their odds of winning a Super Bowl? Which franchises are on the rise, and which are on the decline?
Most of the answers will reveal themselves during the next four weeks, when rosters are trimmed and depth charts are solidified.
Twenty questions as the league heads into the dog days of August:
How prepared is New England quarterback Jimmy Garoppolo?
Tom Brady has appealed his four-game suspension, and Commissioner Roger Goodell has yet to issue a ruling on that. In the meantime,...