Despite only being six weeks into the new season, several big managers are already under serious pressure.
Check out: the five coaches who must improve fast.
Number 1 Ole Gunnar Solskjaer (Man Utd)
The milestone will be reached by Solskjaer in December, which is the third anniversary of his appointment as Manchester United manager.
Ole has yet to win the second and the third biggest trophies in world football, even though he is managing one of the world's richest clubs. And he has failed to win the Premier League or the Champions League either.
The 1-0 defeat to Aston Villa was United’s third loss in four games. During that time they were knocked out of the EFL Cup and lost their first Champions League match to Young Boys.
The fact that Man United is still only one point off the top of the Premier League table means that Solskjaer is not under immediate risk but any further losses and his position will certainly be seriously questioned.
Number 2 Ronald Koeman (Barcelona)
As Ronald Koeman's awful start to the season continued on Thursday with a 0-0 draw against Cadiz, the Dutch coach watched his team huff and puff, before his second yellow card of the season.
In Koeman's case, he may still be given credit for saving the club after a disastrous first half of the season has undermined his leadership.
Barcelona find themselves down in the eighth position ahead of their Sunday afternoon match with Levante and was thrashed 3-0 at home by Bayern Munich in their opening Champions League clash.
Number 3 Max Allegri (Juventus)
Following two years away, Max Allegri returned to Juventus this summer hoping to resurrect a side that finished fourth last season.
Despite this, Allegri's side has started the season poorly, picking up just two points in their first four matches - their worst start in 60 years. Allegri's style of play has been criticized as too defensive and even obsolete, with calls for him to be sacked.
Juventus has steadied the ship with two nervy wins this week against Spezia and Sampdoria but the jury is out over whether Allegri is modern enough to rebuild this struggling team.
Number 2 Mikel Arteta (Arsenal)
Michael Arteta had looked on the brink of leaving Arsenal after losing his first three matches without scoring a goal, including a dismal opening day loss to Brentford, who were playing their first topflight match in 74 years.
Arteta has calmed the waters a touch with 1-0 wins over Norwich and Burnley but his position very much remains under scrutiny, as does that of transfer chief Edu.
Sunday’s north London derby against Tottenham could be crucial in Arteta truly turning the tide in his favor.
Number 1 Nuno Espirito Santo (Tottenham)
Tottenham manager Nuno Espirito Santo has had a less than stellar start as the club's new manager. Despite winning the first three games 1-0 in the Premier League, the performances were inconsistent.
And indeed they didn’t as Spurs have since lost 3-0 in successive EPL games to Crystal Palace and Chelsea.
They are without a win in 90 minutes for four games and Spurs fans are not happy with the Portuguese’s defensive football.
Like Arteta, the north London derby on Sunday will be vital in winning over the fans and critics.
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