Junior Tim Tebow, left, was responsible for 55 touchdowns last season en route to winning the Heisman Trophy. The Gators' offense will change drastically if backups Cameron Newton or Jonathan Brantley have to play.
Kestahn Moore, left, is the starter but might not be the most talented back on the depth chart. Emmanuel Moody didn't transfer from Southern Cal to sit on the bench.
Percy Harvin, left, is a Heisman Trophy contender, but he has never played an entire season at UF without an injury. Junior-college transfer Carl Moore is one to watch.
Redshirt senior Phil Trautwein, left, is back at left tackle, giving UF four returning starters on the line. Depth at this position is a strength, with nine quality players who can contribute.
Defense's strength. Brandon Spikes, left, is an All-Amer- ican talent. Spikes started all 13 games at MLB in 2007 and was selected as a First-Team All-SEC after leading the team with 131 total tackles.
Junior-college transfer Troy Epps could provide the push the Gators lacked in 2007. Miami native Javier Estopinan, left, a redshirt senior, is back after his third anterior cruciate ligament injury.
Cornerbacks Joe Haden and Wondy Pierre-Louis return. Fort Lauderdale native Major Wright, left, is a mainstay at safety, but the Gators are extremely thin at the position.
Freshman kicker Caleb Sturgis, left, is an upgrade for the Gators. Return specialist Brandon James was a preseason All-SEC selection.
-- JOSEPH GOODMAN