Question: Which division does the football team, who made the playoffs for the first time in seven seasons in 2015, play within?
Sentence (from "2013 Vanderbilt Commodores football team"): Vanderbilt finished with 9 wins back to back for the first time in school history, also for the first time was ranked in the top 25 of AP and Coaches polls in back-to-back years.
Relevant evidence: No