Week 4 in the college football season is usually when we start to separate the contenders from the pretenders. After three amazing weekends of games, the action only continues to heat up as we head towards the end of September.
Conference play is kicking into high gear starting on Friday night when Stanford (No. 21) takes on Oregon State, and the weekend will come to its conclusion with another outstanding Pac-12 battle when USC (No. 16) heads to the desert to face Arizona State.
There is plenty of enticing action happening in between those contests. With that in mind, the following represent the top storylines for Week 4 of the 2015 college football season.