These are the nation's top signal quarterbacks entering kickoff.Brad CrawfordAug 7th, 8:31 AMRanking college football's top-25 quarterbacks is ultra-subjective and can be interpreted in a variety of ways — projected production,film,word-of-mouth and how they stack up against their peers. SEC quarterback rankings shuffled considerably last month duringbased on preseason news, and those are reflected here along with a few new additions to the top 25.Rankingthe nation's top quarterbacks is a challenge and with five quarterbacks goingin the first round of the NFL Draft earlier this year, there is a void at the top of the sport with several potential superstars set to emerge.Most of theincluded players are stars for contenders andmany project to appear in the first expanded College Football Playoff laterthis year.A few honorable mention quarterbacks which just missed the cut ahead of season openers include Preston Stone (SMU), Avery Johnson (Kansas State), Haynes King (Georgia Tech), KJ Jef...