Carlos Carvalhal's first game in charge of Swansea ended in a dramatic 2-1 win at Watford.
The Premier League's bottom side were trailing to Peruvian winger Andre Carrillo's goal and staring at another damaging defeat with four minutes remaining.
But Jordan Ayew sparked the revival and substitute Luciano Narsingh completed a thrilling comeback to secure only a second win in 13 matches for the Swans.
Carvalhal was a surprise choice to replace Paul Clement as Swans manager this week having only lost his job at Championship Sheffield Wednesday four days earlier.
Yet his unconventional personal promotion could last longer than the six months most Swans fans envisaged if his new side show the spirit they demonstrated at Vicarage Road.