What is #CFBrank?

#CFBrank is the Twitter hashtag to use if you want to get involved in the discussion or just follow along.

How did we rank the players?

We asked 43 of ESPN's college football writers, editors and analysts to rate players on a scale of 0-10 based on their expected contributions for the 2015 season.

Full player rankings:

1-10 | 11-20 | 21-30 | 31-40 | 41-50 | 51-60 | 61-70 | 71-80 | 81-90 | 91-100

T-61. Devontae Booker

Utah Utes

Senior | Running back

Score: 7.00

He isn't shy about his 2015 goals: "I'm planning on rushing for 2,000 yards and winning the Heisman." Booker's aspirations are lofty, but his resume suggests they're reachable. He was fantastic running through crowded spaces last year, amassing 815 yards after initial contact -- almost 200 more than the next-closest Pac-12 running back. The Utes figure to rely even more heavily on Booker this season, as they've graduated a significant amount of receiving talent. The potential for a massive year is there.

T-61. Jeremy Johnson

Auburn Tigers

Junior | Quarterback

Score: 7.00

We haven't seen much of Johnson (two career starts) but the hype is palpable. A more polished passer than his predecessor, Nick Marshall, some are mentioning the 6-foot-5, 240-pound Johnson as a possible Heisman Trophy candidate. In Malzahn's offense, the junior should thrive for a team looking to make College Football Playoff noise.

T-63. Tony Conner

Ole Miss Rebels

Junior | Defensive back

Score: 6.98

After two impressive seasons in Oxford, Conner is poised for another one. The physical safety led all SEC defensive backs with nine tackles for loss last year to go with 69 tackles overall. There's no reason to believe he can't replicate or improve those numbers again this season at the back of a solid Rebels defense.

T-63. Josh Doctson

TCU Horned Frogs

Senior | Wide receiver

Score: 6.98

Though overshadowed by West Virginia's Kevin White and Kansas State's Tyler Lockett, Doctson quietly was one of the most effective receivers in the Big 12 last season. With White and Lockett now both playing in the NFL, Doctson won't be flying under the radar again. Especially playing in one of the top scoring offenses in the country.

T-63. Chris Jones

Mississippi State Bulldogs

Junior | Defensive lineman

Score: 6.98

Jones' production level hasn't matched the amount of hype he received as an incoming recruit. (He has only started three times and has six career sacks, 10.5 tackles for loss and 58 total tackles.) That could change this year, as he is expected to step into a full-time starting role at defensive tackle. His strength and athleticism are unquestioned; production is what's anticipated for the 6-foot-6, 308-pound Jones.

T-66. Emmanuel Ogbah

Oklahoma State Cowboys

Junior | Defensive end

Score: 6.93

The Big 12's breakout star in 2014 burst onto the national scene with a pair of sacks against Florida State's Jameis Winston in the season opener. He went on to earn Big 12 Defensive Lineman of the Year honors with 11 sacks and 17 tackles for loss as a sophomore. Ogbah will be the centerpiece of a defense that could be OSU's best under Mike Gundy.

T-66. Seth Russell

Baylor Bears

Junior | Quarterback

Score: 6.93

Those who follow Baylor closely are confident Russell will outperform Bryce Petty in his first year as a starter. That's high praise. His dual-threat abilities (5.8 yards per carry in 2014) give Baylor even more options in the run and pass game, and Russell has three years as a backup under his belt. If he can put that experience to good use, Russell ought to be one the Big 12's top passers in his first full season as a starter.

68. Jalen Hurd

Tennessee Volunteers

Sophomore | Running back

Score: 6.91

He's only a sophomore, but Hurd already made his presence felt in Knoxville with 1,120 combined rushing and receiving yards last season and seven touchdowns. Sure, he'll have to share some of the backfield load with Alvin Kamara, but Hurd's explosiveness makes him a weapon on every play, and he's poised for a super sophomore season.

T-69. Jamal Adams

LSU Tigers

Sophomore | Safety

Score: 6.88

The sophomore is relentless, tenacious, you name the adjective, it probably fits Adams. A physical safety who was a freshman All-American last season, he should improve on his 66 tackles, five tackles for loss and five pass breakups from 2014. The word 'leader' is already being thrown around with Adams, which signifies his impact so far in Baton Rouge.

T-69. Jabrill Peppers

Michigan Wolverines

Sophomore | Defensive back

Score: 6.88

The former No. 2-ranked recruit nationally, Peppers arrived in Ann Arbor amid immense expectations last fall, but his true freshman season never launched as planned. An ankle injury kept him out of the Notre Dame game, and Peppers sat for the remainder of the season after three September appearances. He earned a medical waiver and enters 2015 as a redshirt freshman with renewed excitement about his spot at safety and potential as a game-changing defender.

Voters: Andrea Adelson, Dane Beavers, Brian Bennett, Kyle Bonagura, Ryan Canner-O'Mealy, Brandon Chatmon, David Ching, Chris Cotter, Jeremy Crabtree, Heather Dinich, Brad Edwards, Chris Fallica, Matt Fortuna, Kevin Gemmell, Travis Haney, Brock Huard, Chantel Jennings, KC Joyner, Sharon Katz, Sam Khan, David Lombardi, Chris Low, Greg McElroy, Erik McKinney, Ted Miller, Josh Moyer, Dan Murphy, Conor Nevins, Max Olson, Greg Ostendorf, Adam Rittenberg, Alex Scarborough, Joe Schad, Mark Schlabach, Jared Shanker, Mitch Sherman, Phil Steele, Joe Tessitore, Jake Trotter, Derek Tyson, Tom VanHaaren, Austin Ward, Jeremy Willis