Football is back!

Sort of.

The Denver Broncos hit the field on Tuesday for the first day of Organized Team Activities -- voluntary, non-contact, non-padded practices. This is the first set of three-day OTAs for Denver, who will practice similarly over the next two weeks. As such, it's the inaugural glimpse of a revamped club coming off a 5-11 season.

Among the main storylines are new quarterback Case Keenum, his upgraded supporting cast as well as the debut of fifth-overall draft pick Bradley Chubb. This, along with the usual cast of characters on defense.

Nothing can truly be gleaned from OTAs besides an infantile picture of the starting lineups. This isn't training camp where jobs are won and lost, and the intensity is cranked up to the max. But they're not completely pointless, either.

Each player, especially the rookies and second-year guys, are looking to save up credits in the proverbial bank. Imagine the bank as the approval of the coaching staff and front office. The goal is to have earned up enough credits — by the time the preseason is through — that it adds up to a roster spot. The guys with the most credits earn a coveted seat at the table.

So are OTAs everything? No. Do the proceedings contribute to that total sum that equals a player's potential for earning a roster spot? Absolutely. And this year, there are a multitude of roster battles that bear scrutiny.

To see who's already accruing interest in said battles, scroll through below for the best moments from Tuesday's practice.