Alabama is preseason #1, as they should be. That said, looking at the losses of personell on defense, they may well stand to lose 4 games this season. Looking at the schedule they have the following possible loss scenarios:
Sept 25 @ Arkansas: This could be the first loss on the Alabama schedule.
October 2 Florida: This one could be the revenge game for Florida. Florida lost Tebow, but they could become more of a passing team that could light up the Alabama defense.
October 9 @ S.Carolina: The Gamecocks could pull off the upset at home.
October 23 @ Tennessee: With the new coach in place, Tennessee doesn’t lack talent. This could be an interesting in mid season
November 6 @ LSU: LSU could easily win this game in the Bayou