Richie Wellens blamed his side’s lack of experience after his Leyton Orient side, who finished with 10 men, drew 2-2 with Exeter at Brisbane Road.
Orient were holding a comfortable two-goal lead with Ollie O’Neill and substitute George Moncur on the scoresheet.
But the context of the game changed when Brandon Cooper was forced off with injury during the second half leaving Orient, who had already used all their substitutes, to battle out the final 20 minutes a man down.
Orient were then penned in and around their own penalty area and the Grecians finally broke through a resilient rearguard action with a Millenic Alli header before Will Aimson got the final touch to Tommy Carroll’s shot to salvage