With four weeks left in the 2013 college football season, it's hard to consider any team a definite lock to be among the 10 teams selected for the final edition of the BCS. Not when the teams either make it as an automatic qualifier from their league or as an at-large selection that is based on how they sit in the BCS rankings.
Those rankings are determined by a formula that includes two polls from human voters and a compilation of computer rankings. It's been a much-maligned system, one that causes much stress for coaches whose teams suffer a late-season loss. But there are a handful of teams who control their own BCS destiny, knowing that just winning out will get them a spot in the Fiesta, Orange, Rose or Sugar Bowls or the BCS National Championship.
The formula is simple: Win out, and you're in. Lose again (or even for the first time), and it's time to sweat and scoreboard-watch.