Miles had spent 12 seasons with the school, but could not keep his championship-caliber team ranked just a month into the season. Defensive line coach, Ed Orgeron, will take over as the interim coach.
The decision to dismiss Miles was reportedly finalized Saturday night following a controversial loss to Auburn. Offensive coordinator Cam Cameron was also let go.
Orgeron spent his college playing career at LSU, and does have experience as a head coach at Ole Miss from 2005-2007, compiling a record of 10-25. The 55-year-old also took over for Lane Kiffin as an interim coach at USC in 2013, going 6-2 in that span.
Miles got off to a quick start at LSU, going 75-18 during his first seven seasons, winning three SEC West titles, two SEC titles, along with two BCS championship appearances, and one national title.
Since then, the Tigers have struggled against conference foes, going 2-7 against Alabama, Ole Miss, and Arkansas. This has costed LSU big time at the end of each season since 2011, and with the two tough losses this season, even Miles knew his time had run out as an LSU Tiger.