I don't think there is any way he ends up getting fired after this season. He's given us 9+ wins year after year and with this schedule there is no reason we shouldn't expect the same. I'll agree that if we don't get a conference championship under our belt in the next 3 to 5 years then his seat is going to be unbearable.
Probably depends on Michigan/Ohio State. With where Hoke and Meyer have those schools going we could very well be playing a top 3 team every year for that conference championship. It's bound to get tougher. Can't get any easier than a 5 loss opponent. I still think everything is going to center around how competitive of a team we field. If we reach that game every year, and have a similar outcome to last year a couple more times...it going to quickly gloss over those 9 wins. As someone else said, every year since that A&M game in 2010 we've slowly become less and less competitive in those national stage type games. It seems like the 2010 Texas game is when we discovered Bo has a hard time bringing the A team for big games. Maybe once a season he can, but we play 3 or 4 of those games a year, and generally we've been the better team in most of them.
Last 2 years, with 8 losses I'd say the only teams we weren't better than going into the game was Wisconsin (2011), South Carolina (2011), Ohio State (2012 - and this one is close), Georgia (2012). He should have 2 or 3 out of those other 4 losses, and maybe 1 of these 4.