Football is all about glory and to achieve that, your team needs to be successful.
It needs to win matches. To win matches, your team needs a good manager.
Over the years, the Premier League has seen some of the best tacticians to ever grace the game.
We're talking Pep Guardiola, Jose Mourinho, Jurgen Klopp and of course, Sir Alex Ferguson.
They all managed big clubs, but we've seen some legends take charge outside of the 'big six' - the likes of Kevin Keegan and Sir Bobby Robson, for example.
Defining 'the best manager in history' is tough, because it's often subjective. So we're not going to do that today.
Instead, GIVEMESPORT have decided to take a look at each Premier League club's best and worst ever manager, based on points per game. So let's get into it.
Arsenal
Best manager: Mikel Arteta (2.06 PPG)
Worst manager: George Graham (1.55 PPG)
Aston Villa
Best manager: Martin O'Neill (1.59 PPG)
Worst manager: Remi Garde (0.70 PPG)
Brighton
Best manager: Chris Hughton (1.13 PPG)
Worst manager: Graham Potter (1.10 PPG)
Burnley
Best manager: Sean Dyche (1.15 PPG)
Worst manager: Owen Coyle (1.11 PPG)
Chelsea
Best manager: Jose Mourinho (2.23 PPG)
Worst manager: Glenn Hoddle (1.28 PPG)
Crystal Palace
Best manager: Alan Pardew (1.36 PPG)
Worst manager: Frank de Boer (0.60 PPG)
Everton
Best manager: Carlo Ancelotti (1.82 PPG)
Worst manager: Mike Walker (0.84 PPG)
Fulham
Best manager: Roy Hodgson (1.41 PPG)
Worst manager: Scott Parker (0.64 PPG)
Leeds
Best manager: David O'Leary (1.71 PPG)
Worst manager: Peter Reid (1.00 PPG)
Leicester
Best manager: Brendan Rodgers (1.75 PPG)
Worst manager: Claude Puel (1.33 PPG)
Liverpool
Best manager: Jurgen Klopp (2.04 PPG)
Worst manager: Roy Hodgson (1.52 PPG)
Man City
Best manager: Pep Guardiola (2.33 PPG)
Worst manager: Alan Ball (0.95 PPG)
Man United
Best manager: Sir Alex Ferguson (2.07 PPG)
Worst manager: David Moyes (1.73 PPG)
Newcastle
Best manager: Kevin Keegan - first spell (1.84 PPG)
Worst manager: Kevin Keegan - second spell (1.14 PPG)
Sheffield United
Best manager: Chris Wilder (1.48 PPG)
Worst manager: Neil Warnock (1.00 PPG)
Southampton
Best manager: Ronald Koeman (1.64 PPG)
Worst manager: Dave Merrington (0.97 PPG)
Tottenham
Best manager: Andre Villas-Boas (1.91 PPG)
Worst manager: Ossie Ardiles (1.15 PPG)
West Brom
Best manager: Darren Moore (1.83 PPG)
Worst manager: Alan Pardew (0.67 PPG)
West Ham
Best manager: Slaven Bilic (1.43 PPG)
Worst manager: Gianfranco Zola (1.11 PPG)
Wolves
Best manager: Nuno Espirito Santo (1.64 PPG)
Worst manager: Dave Jones (0.88 PPG)
There are certainly a few shocks on that list. Did anyone think AVB had the best record at Tottenham?
We're not too surprised to see Moyes named as the worst manager in Man United history though.