Clemson will go from Trevor Lawrence to D.J. Uiagalelei. Alabama will shift from Mac Jones to Bryce Young. With Kyle Trask gone, Florida will turn to Emory Jones.

Some of the top contenders for the 2021 college football national championship have established clear succession plans under center. Not every program is so lucky.

With spring football underway in most conferences, attention shifts to the most marquee of all offseason competitions. These are the contests that will the define the spring and likely trickle into the summer and fall camp:

Brigham Young

Contenders: Jacob Conover(RS Fr.), Jaren Hall (So.), Sol-Jay Maiava-Peters (RS Fr.), Baylor Romney (Jr.)

A former walk-on, Romney was last year's backup to star Zach Wilson, throwing for 261 yards and a touchdown in seven games of garbage time. He was more effective in 2019, when he won both of his starts and had seven touchdowns across 85 attempts. While he missed last season due to injury, Hall also saw time in 2019 (420 yards on 9.1 yards per attempt) and played well before suffering a concussion in November. The two redshirt freshmen were highly recruited prospects and will be given the opportunity to impress first-year offensive coordinator Aaron Roderick and grab the starting job.