9. Rod Rust
Hired for his first NFL head coaching gig at 61, aptly named Rod Rust won only one game during his only season of head coaching in the NFL. In his one season with the New England Patriots, Rust had to deal with the Lisa Olson sexual harassment charges, two of his players charged with gun possession, and several other scrapes that players had with law enforcement. Rust commanded no respect in the locker room and barely any from opposing coaches. His game plans appeared as if someone had used stick figures to diagram plays.