2021 Heisman Trophy predictions: Wide-open field littered with quarterbacks

This story is part of USA TODAY Sports' 25 days to college football countdown. 

It's rare to have a complete reset of the Heisman Trophy race from one season to the next. But with none of last year's top-five finishers returning in 2021, the chase for the Heisman is wide open and unpredictable.

Only once since 2003 has none of the top five not come back the following year.

That leaves several returning quarterbacks and skill players in the mix for the 2021 Heisman with no clear favorite heading into the start of the regular season.

But when in doubt, ask this question: Which quarterback will put up the best numbers for the teams pegged to contend for the national championship?