TMZ Sports spoke with Dillon -- a 4x Pro Bowler -- about the Bengals' disappointing 3-7-1 record ... and it's clear he's ready to see a new leader on the sidelines.
"If you got talent and it's not getting processed into the playoffs and winning playoff games, you gotta start looking at your staff."
FYI -- Lewis has been Cincinnati's head coach since '03 ... but has never won a playoff game.
"I done won more playoff games in 3 years with the Patriots than he done won [in 13 with Cincinnati]."
Dillon says he's not hatin' on Lewis -- he just thinks it's time for a "fresh start."