Offensive coordinator Dave Patenaude, co-defensive coordinator Nathan Burton and cornerbacks coach Jeff Popovich were all fired Sunday.
"As I have begun evaluating our program and identifying the things we need to do to be more successful, I have determined that a change in leadership on both sides of the ball is necessary," Collins said in a statement. "I believe that new voices in these key positions on our staff will allow us to do a better job of consistently putting our players in the best position to meet the high standards we all have for our program."
Collins has faced increased pressure this season. The former Temple coach took over the program in 2019, shifting from the triple option to a more standard spread offense, and has struggled to find success.
In three seasons, Tech hasn't finished above .500 and has an overall record of 9-25.
This season, the Yellow Jackets fielded the second-worst offense in the ACC in terms of points per game (24.0)
The defense gave up the most passing yards per attempt in the conference with 9.78.