Both Bustle and West have more than 30 years of experience at the college level. The 58-year-old Bustle was head coach at Louisiana-Lafayette from 2002-10 and also Virginia Tech's offensive coordinator for seven seasons. He was the quarterbacks coach at Tulane this season.
The 57-year-old West was the head coach at UT-Chattanooga, Clemson and Memphis before spending this fall as the defensive coordinator at UAB.
Buckley has been the head coach at Petal High School in Petal, Miss., the past five seasons. This is the 48-year-old's third stint as an assistant at Southern Miss.