Freddie Ljungberg lauded Arsenal pair Gabriel Martinelli and Nicolas Pepe after they helped the Gunners end a nine-match winless run at West Ham on Monday evening.
Angelo Ogbonna's first-half header appeared to have the visitors on the verge of an even bigger crisis, but three goals in the space of nine minutes changed everything.
Interim boss Ljungberg had made the bold decision to drop Alexandre Lacazette for young Brazilian Martinelli and it paid off when the teenager equalised on the hour mark.
Record signing Nicolas Pepe then took centre stage, putting Arsenal 2-1 up six minutes later before he assisted Pierre-Emerick Aubameyang to wrap up the points at London Stadium.
It was a night to forget for West Ham boss Manuel Pellegrini, with his side only a point above the bottom three and without a home win since September 22.
He insisted: "I am not worried about relegation, I am more worried about the last five games at home where we have had just one draw, conceding three goals in each game. I am more worried about that.
"We need to be more concentrated, consistent and solid and try to finish with more quality."