Last season, we began our weekly SEC QB Ratings Index, a numeral rating system developed using all passer-related statistics and efficiency totals. Quarterbacks are graded based on the previous game’s performance from completion percentage to third-down conversions and placed in order from average to elite.

In light of spring practice finishing up, here’s how each projected starter ranks in the SEC heading into the 2015 campaign. Last year’s final rankings have a heavy influence on preseason grades with no game film since.

WORK TO DO (60.0-75.5)

14. Johnny McCrary, Vanderbilt — McCrary wasn’t the only Commodores quarterback to struggle last season. Several struggled in an anemic offense that led to play-caller Karl Dorrell’s exit. Patton Robinette appeared to be Vanderbilt’s best option this spring, but his decision to quit football leaves Derek Mason and new OC in a bit of a bind heading into fall.

13. Will Grier, Florida 

12. Connor Mitch, South Carolina — The time is now for Mitch, a former four-star prospect in the Gamecocks’ 2013 class picked to eventually succeed Connor Shaw and Dylan Thompson as Steve Spurrier’s quarterback. He arrived in much better shape and played well this spring, but according to his coach, there’s no separation in the quarterback race. The adjustment to first-team reps may come with mistakes early, but Mitch is the Gamecocks’ best option.

11. Ryan Buchanan, Ole Miss 

TALENT ISN’T THE ISSUE (76.5-85.5)

10. Anthony Jennings, LSU — For everything Jennings didn’t do right last season as the Tigers’ primary quarterback, his ability to escape pressure and stay away from catastrophic mistakes was at times just enough for LSU’s run-heavy set. He’s battling Brandon Harris to retain his spot and at the moment, there’s not an obvious frontrunner.

9. Jake Coker, Alabama — The skill set is there for this fifth-year senior, but can he win the Crimson Tide’s quarterback competition in August? Nick Saban called it ‘unfair’ to determine which quarterback exceeded others in Alabama’s spring game since not all received first-team snaps and performed behind a strong offensive line. No matter who starts at quarterback, replicating Blake Sims’ season will be a challenge.

8. Patrick Towles, Kentucky

CAN THEY STAY CONSISTENT? (76.5-85.5)

7. Maty Mauk, Mizzou — Based on total quarterback ratings, Mauk had two of the worst games for any SEC signal caller last season (97 yards, 4 INT vs. Georgia; 20 yards, INT at Florida) but managed to lead Mizzou to its second consecutive league title. Mauk’s a playmaker despite his deficiencies from the pocket and there’s something to be said for a guy who can win more often than not.

6. Brice Ramsey, Georgia

THE ELITE (93.0-98.5)

5. Brandon Allen, Arkansas — Yes, it was against the Razorbacks’ second team and yes, he had the obvious advantage as a two-year starter, but Allen’s performance in Saturday’s spring game was a great sign for a senior still making a name for himself in the West. He’s more than a placeholder in one of the league’s top rushing offenses, Allen is now a weapon in the passing game.

4. Jeremy Johnson, Auburn 

3. Joshua Dobbs, Tennessee 

2. Kyle Allen, Texas A&M — The ideal pocket passer in Kvin Sumlin’s Air Raid with the Aggies, Allen took over for Kenny Hill during the middle of the season last fall and never relinquished his job after impressing the coaching staffs. Reads were faster and throws more accurate as his freshman season progressed, a promising development that carried over into spring practice when Allen shined as Texas A&M’s best quarterback on roster.

1. Dak Prescott, Mississippi State