There are plenty of examples of fine NFL coaches that have had poor seasons. Look at Cowher, Bellichek, Fox and on and on. According to the logic of some on this site, Bill Cowher should be fired because the Steelers are not a lock to make the playoffs or Fox should get the axe because the PAnthers are on the brink.
To compare Saban to Wanny is just ridiculous. Saban is a much better evaluator of talent, is a better coach, teacher, and has instilled a much more competitive mentality in this team.
Comparing Saban to Cowher, Bilicheck, and Fox (and any other coach who took his team to the SB) is more ludicrous than comparing Saban to Wannstedt. As a matter of fact, Wannstedt took a team to a division title and won a playoff game. Saban never has.