It's the No. 1 storyline on the team -- the quarterback competition. McCown, 38, is the favorite based on his vast experience and ability to manage a game, but it's not a slam dunk. No quarterback who has lost 20 of his last 22 starts can be considered a sure thing. Hackenberg remains in the picture, with Petty in the background. Training camp will be a balancing act for coach Todd Bowles. The No. 1 priority is to get the starter ready for Week 1, but it's also important that he give the young quarterbacks a chance to play, develop and ostensibly compete for the starting job.

Player to watch: Welcome to the spotlight, Christian. The one-year honeymoon is over, and it's time to make general manager Mike Maccagnan look smart. Hackenberg took some baby steps in minicamp, but there's still a gap between him and McCown. Consider: Hackenberg has yet to face a starting defense in a game situation. He played 76 preseason snaps last summer, all of them against backups. In the regular season ... well, you know the deal there. He didn't see any game action. His biggest challenge in camp will be mastering an offense that doesn't suit his skill set. The West Coast offense requires pinpoint accuracy and quick reads. The system is predicated on the quarterback being able to work through his progressions -- 1, 2, 3 -- while staying in rhythm with the flow of the play. That takes time and experience.

Wild card: With only one practice per day, it's virtually impossible to have a legitimate, three-way competition, which means Petty could be the odd-man out. His roster spot isn't secure, so he'll need to show improvement to stick around.