Mikel Arteta placed his faith in Arsenal's kids to get them out of trouble and they delivered for their under-pressure manager on Boxing Day.
Powered by 19-year-olds Gabriel Martinelli and Bukayo Saka and a 20-year-old in Emile Smith Rowe making his first start in the Premier League this season, Arsenal produced their best performance in some time to beat Chelsea 3-1 and lift some of the gloom over Emirates Stadium.
A first league victory in nearly two months was vital to boost Arsenal players' fragile confidence - even if it only lifted them into 14th place.
"The result is the main thing today, we really needed that win," Arteta said.
It took 90 minutes for the scrutiny that was hovering over Arteta to drift toward his Chelsea counterpart, Frank Lampard.
That's three losses in the past four league games for the Blues, who have dropped to seventh.
"It is not tactics or systems, it is do you want to run, back your team-mate out and sprint? Or do you want to jog and say 'maybe I don't have to run' and we took that decision instead of the right one," Lampard said.
A penalty by Alexandre Lacazette and a stunning free kick by Granit Xhaka put Arsenal two clear at halftime before Smith Rowe and Saka combined for the latter to loft a shot - or maybe it was a cross - in off the far post.
Tammy Abraham replied for Chelsea before Gunners 'keeper Bernd Leno produced a fine save from Jorginho's penalty in stoppage time.
Manchester United's perfect away record is over after substitute Axel Tuanzebe unwittingly deflecting a shot from Jamie Vardy into his own net in the 85th as Leicester City grabbed a 2-2 draw.
The result kept the Foxes above United in the standings but both dropped down a place to third and fourth respectively.
Bruno Fernandes set up Marcus Rashford for the opener, made a sloppy mistake that led to Harvey Barnes equalising, then scored himself in the 79th to put United back in the lead.
"Disappointed we didn't win today because we had loads of big chances," United manager Ole Gunnar Solskjaer said.
Everton edged Sheffield United 1-0 to regain second place, two points adrift of leaders Liverpool.
Gylfi Sigurdsson scored in the 80th minute against the rock-bottom Blades, who have just two points from 15 games.
Manchester City accounted for Newcastle United 2-0 in the rain at Etihad Stadium.
Goals from Ilkay Gundogan (14th) and Ferran Torres (55th) lifted City to fifth place, after their fifth clean sheet in their past six matches.
Sixth-placed Aston Villa defeated visitors Crystal Palace 3-0 despite playing the whole second half with 10 men after Tyrone Mings was sent off before halftime.
Southampton had two second-half goals ruled out by VAR in a 0-0 draw at relegation-threatened Fulham.