Clemson is one of the most talented teams in the country on offense, but how will the Tigers replace three starters each on the offensive and defensive lines? Clemson's offense still should take another step forward in the second season under coordinator Chad Morris, as record-setting receiver Sammy Watkins returns along with quarterback Tajh Boyd and 1,000-yard rusher Andre Ellington. The defense will go through a transition under first-year coordinator Brent Venables and will rely on defensive end Malliciah Goodman to help compensate for the loss of leading pass-rusher Andre Branch. The Tigers have a legitimate chance to defend their ACC title and can put an embarrassing Orange Bowl loss behind them, but they have to improve quickly up front. -- Heather Dinich, ESPN.com ACC blogger