18) Andre Villas-Boas, 1.79 points per game, 0 titles, 0 top four finishes, 81 games, 179pts
Amazingly, despite being a failure at both Chelsea and Tottenham, the Portuguese makes in to the top 20. Perhaps he was sacked too early by the two London clubs?
17) David Moyes, 1.51 points per game, 0 titles, 1 top four finish, 461 games, 186pts
Now remembered for his terrible time with Manchester United, but the Scot was relatively successful for over a decade with Everton. Surprisingly his one top four finish also came with the Toffees.