Question: Which division does the football team, who made the playoffs for the first time in seven seasons in 2015, play within?

 The Dolphins look to improve on their 8-8 record from 2014 and return to the playoffs for the first time in seven seasons. The 2015 Miami Dolphins season was the franchise's 46th season in the National Football League and the 50th overall.  However Miami failed to clinch a playoff berth for the seventh consecutive season after a Week 14 loss to the Giants. <SEP> The Stephen F. Austin Lumberjacks football program is the intercollegiate American football team for Stephen F. Austin State University located in the U.S. state of Texas.  The team competes in the NCAA Division I Football Championship Subdivision (FCS) and are members of the Southland Conference.  Stephen F. Austin's first football team was fielded in 1923.  The team plays its home games at the 14,575 seat Homer Bryce Stadium in Nacogdoches, Texas.  SFA's football team earned a berth into the FCS playoffs in 2009, which was the first for the university since 1995.  The team also earned a playoff berth in 2010, marking the first time in the program's history that the team had reached the playoffs in consecutive seasons.  The 2010 season also marked the first time that the school had won an outright conference championship since 1989.  Stephen F. Austin's only bowl appearance was the 1973 Poultry Bowl, in which the team defeated Gardner-Webb 31-10 in Gainesville, Georgia. <SEP> The 2008 Miami Dolphins season was the organization's 39th season in the National Football League and 43rd overall.  During the regular season the Dolphins completed the greatest single-season turnaround in NFL history, going from a 1–15 regular season record in 2007 to an 11–5 record in 2008.  The previous record for most improved team one year after a 1–15 season belonged to the 1992 Indianapolis Colts, who went 9–7.  The 1999 Indianapolis Colts were the only other team to accomplish a 10-game turnaround, winning 13 games after winning 3 in 1998.  Additionally, Miami won the AFC East, becoming the first team in NFL history to win their division after only having one win the previous season. <SEP> The 2013 Vanderbilt Commodores football team represents Vanderbilt University during the 2013 NCAA Division I FBS football season.  The Commodores play their seven home games at Vanderbilt Stadium at Dudley Field in Nashville, Tennessee, which has been Vanderbilt football's home stadium since 1922.  The 2013 team is coming off back-to-back bowls for the first time in school history.  The 2012 season was the best win pct since 1955 (.692) the nine wins was the most since 1915, and the 5 SEC wins was the most since 1935.  The 2012 season ended with the current longest win streak in the SEC, needless to say this was one of the best seasons in Vanderbilt football history.  The 2013 team was headed by James Franklin who was in his 3rd and final year at Vanderbilt.  It marked the Commodores 123rd overall season, 80th as a member of the Southeastern Conference (SEC) and its 22nd within the SEC Eastern Division.  For the third straight year Vanderbilt had made it to a bowl game the game was the first played after December 31 of the same year of the season.  Vandy defeated Houston Cougars in the BBVA Compass Bowl 41–24.  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.