4) Roy Evans and Gerard Houllier (Joint)

Houllier Evans

By themselves, they had pretty successful spells in charge of Liverpool but the Reds board’s decision to make them joint managers in 1998 was a car crash waiting to happen.

After just seven wins in 18 games, Evans decided to quit his role, leaving Houllier in sole charge, with the Frenchman then going on to win the memorable cup treble in 2001.