boomtho: Texas: Looking at how the schedule breaks, Texas is the probably the toughest game in the first five weeks. If Cal can beat UT on the road (which would be impressive, despite the Longhorns being relatively down right now), I could see us being 5-0 heading into the tough back half of the schedule. That would set us up as well as possible to make a bowl game and continue to the progress we've seen under Sonny & Co.
Ruey Yen: Stanford - since the Big Game is how I basically judge the success of every season. But realistically, I will be quite happy about the 2015 Cal Football season with wins over Texas and USC this year, even if we do falter against the Furdies.
Sam Fielder: I agree with Boomtho that it's Texas. Winning in Austin would give us a great chance to start the season 5-0 which would be huge in getting momentum in recruiting (though we aren't doing so bad there right now as it is...) and also gives us a fantastic chance to get bowl eligible. From there it's just a couple of breaks going our way and we're looking at a possible 7-8 win season. If we can pull that off just 2 seasons removed from a 1 win season, that would be huge. But it all hinges on Texas. Our team has the experience and maturity to go on the road and not lay an egg in a huge non-conference game against a national program that is looking to rebound. A loss wouldn't be completely devastating, but it would be the latest in a long line of high-profile losses that I really want to see us reverse starting right here.