Mark Hudson hit out at the naivety of his Cardiff City players who allowed Wigan Athletic the opportunity to score a 96th-minute equaliser.
The Bluebirds took the lead through Callum O'Dowda in the 82nd minute and appeared to have broken a winless run stretching back to November 5, when they beat Sunderland 1-0.
However, Will Keane's injury-time strike means City are now without a win in nine games and Hudson bemoaned his players' immaturity and lack of game management at the end of the match.