Week 5 of the 2012 college football season is in the books and plenty of coaches saw the temperature on their seat increase by a few degrees. Kentucky's Joker Phillips and Boston College's Frank Spaziani continue to hold down the top two spots in the rankings. One new coach makes an appearance in this week's top 20 (Ellis Johnson), while Texas Tech's Tommy Tuberville drops out after beating Iowa State to move to 4-0 this season.

This league seems to get deeper and deeper each Saturday. After another stellar weekend of action out West, six Pac-12 schools now reside in the AP Top 25. Washington and UCLA slide into the rankings, while Arizona State is knocking on the door and Arizona is clearly another solid team. And as strange as it may sound, Cal might be the best 1-4 team in the nation.  

The final weekend of college football action in September certainly won't win many awards for the best slate of games. The Week 5 schedule features some intriguing games (Ohio State-Michigan State), but nothing like college football fans experienced last Saturday with Clemson-Florida State, Kansas State-Oklahoma and Notre Dame-Michigan. However, it's the weeks we least expect to be exciting that end up producing several upsets and close calls among teams ranked in the top 25.

Top Storylines to Watch in Week 5

The college football season is only four weeks old, but the general feeling from most of the nation is there is a clear No. 1 team - Alabama. A lot will happen and plenty can change between now and the end of the season, but is LSU the biggest obstacle to another title by the Crimson Tide?

Is LSU Alabama's Biggest Threat to a National Title?

The 2012 season is turning into one of the best fans have seen out West in years and it has a chance to get even better. Oregon State and Arizona State made huge statements last week, but both have huge road tests this weekend that will prove if they belong in conference contention. Otherwise, all eyes across the college football world should be on the Pac-12 this Thursday evening.

Pac-12's Top Storylines to Watch in Week 5:

College football's Week 5 schedule is relatively quiet in terms of top 25 matchups. Although there are few marquee games to watch this Saturday, it's weekends like this one that can spring a few upsets. Athlon's panel of editors is back, along with a guest contributor to give you the top upset predictions for Week 5. 

College Football's Week 5 Upset Picks

Week 4 of the 2012 college football season is in the books and plenty of coaches saw the temperature on their seat increase by a few degrees. Thanks to a lackluster showing at Florida, Kentucky's Joker Phillips holds down the No. 1 spot once again. With a surprising loss to Central Michigan, Iowa's Kirk Ferentz makes a big jump in the rankings. While UNLV's Bobby Hauck, Colorado's Jon Embree and Central Michigan's Dan Enos fall after important victories in Week 4.

College football's bowl season is still a few months away, but it's never too early to take a look at what the matchups might look like. With only three weeks of results in the books, it's hard to make long-term projections about teams, especially with several teams still playing overmatched non-conference games. 

Oregon and USC used stellar defensive performances to get key home conference wins. Oregon State and Mike Riley shocked the country once again with an upset win over a ranked opponent — this time on the road — as the Beavers have added their name to the crowded North Division race. The Colorado Buffaloes got what could be its first and only win of the 2012 season in stunning fashion. But the most startling performance of the weekend has to go to Todd Graham and the Arizona State Sun Devils.

College football's Week 4 slate doesn't feature a ton of huge matchups, but there's plenty of impact games. Florida State-Clemson is a marquee ACC battle between two top-10 teams, while Michigan travels to Notre Dame. As usual, the SEC always has a few intriguing contests that are must-see games. Vanderbilt travels to Georgia, LSU hits the road for a matchup against Auburn and new SEC member Missouri takes on South Carolina.