The Statistical Review breaks down teams along a number of performance categories, everything from red zone scoring to field goal percentage, and compares that performance against the rest of the FBS. All 124 teams will be reviewed from 124 to 1 by the hybrid rankings.
There's not much good to say about Idaho in 2012. They were better than the league average in two categories, sacks/pass (1 sack for every 20 pass attempts) and field goal kicking. On the other hand, the Vandals were a league worst on 3rd downs and turnovers, and just a step out of the basement on Effective Points per Possession (which values both points on the scoreboard and field position). But the death blow was the turnovers; turnovers cost Idaho more than 10 points per game.