Igor Tudor endured a nightmare = Premier League debut as Tottenham Hotspur boss as Arsenal ran rampant against their near neighbours on Sunday evening.
When Randal Kolo Muani equalised moments after Eberechi Eze bundled home the Gunners' opener, the mood inside the Tottenham Hotspur Stadium would have been one of optimism, as the Frenchman confidently finished off an opportunity after Declan Rice dilly-dallied with the ball.
Yet, the second half saw Mikel Arteta's away side batter their arch rivals 4-1, as Spurs now sit just four points off the top-flight drop zone off the back of such a demoralising defeat.
Very few white shirts could come off at the end of the disastrous loss pleased with their overall efforts, with Tudor given plenty of food for thought as to who he should select for crucial games to follow, as he grows quickly used to the pressures of the Spurs' hot-seat.
Why Spurs struggled so badly vs Arsenal
Arteta and Co have now won the last five fierce showdowns between the sworn North London enemies, as Arsenal sit five points clear at the top of the Premier League summit, while Spurs remain deep in a relegation battle.
Tudor will need his defence to tighten up in games to follow if they want to avoid an embarrassing drop down to the Championship, with the likes of Mickey van de Ven sticking out as a clear underperformer at the back, as Bukayo Saka ran rings around a leaky Spurs defence all match long.
Alongside the Dutchman cutting a frustrated figure, Archie Gray was also far too lightweight in such a vital contest, with the ex-Leeds United wonderkid winning just one of his six duels, alongside giving away possession a careless 16 times. He was also totally outmuscled for Viktor Gyokeres' final goal of the game but to his consolation, the Swede also did the same to the ever underperforming Radu Dragusin who had another night to forget in Spurs colours.
Truthfully, even as Conor Gallagher failed to make an impact again as a brand-new signing, Arsenal were just a cut above their rivals during a one-sided second half, with the aforementioned Gyokeres setting the tone for a comfortable victory for the Gunners when classily slotting home a fierce effort mere moments into the second 45 minutes.
As Sky Sports' Jamie Redknapp noted, it was a "complete mismatch" the more the clash dragged on. Dragusin and Gray were poor, and as a result, Tudor needs to make some key alterations immediately.
However, they were not the worst performers for the new manager.
Spurs' biggest underperformer vs Arsenal
Losing at home to Arsenal in such devastating fashion means Spurs' last win in the Premier League came all the way back in late December against Crystal Palace, with the new Tottenham boss very much having his work cut out for him to turn around the car crash unfolding.
A good starting spot to try and turn around this mess could well be to axe Xavi Simons, with the ex-RB Leipzig attacker way off his very best against Arteta's men, as the £52m splashed out on his services last summer continues to look like a reckless splurge of cash.
Simons does have five goal contributions next to his name for the season, with glimpses of his immense quality coming to the forefront here and there in London. Indeed, he picked up an assist against Manchester City earlier in the month where he also completed five dribbles and won 11 duels as a tricky livewire.
He was far easier to contain against Arsenal, though, as the lacklustre number seven only won one of his 15 duels on the night, among other alarming numbers from the disappointing contest.
Alongside feebly throwing himself about the cause, Simons gave away the ball away a reckless 24 times, failed to complete a single accurate dribble from four attempts, and also only registered one on-target effort at David Raya's goal.
This damning assessment of his performance could be enough for Tudor to consider dropping him for his lowly side's next league clash away at Fulham, with Dominic Solanke or Richarlison perhaps in the running for a starting spot in his place.
Despite such a worrying display during his first game in the hot seat, the brand new Spurs boss cut an assured figure at the full-time whistle.
Indeed, the ex-Juventus manager ruled out the potential of relegation confidently when speaking after the 4-1 defeat, even as the North Londoners continue to battle against the drop.
It will be intriguing to see what impact Tudor can have on the downtrodden group of players at his disposal, with Simons surely the first face to be benched if the Croat decides on a refreshed XI for the trip to Craven Cottage.