The Blues lost skipper John McCombe last week and Bignot admitted that more could follow him through the exit door.
On the pitch, it was another disappointing defeat as they went down 1-0 at Woking to remain four points adrift of safety.
That was despite the Cards playing the final half an hour with ten men after Matt Young’s red card for a late challenge on James Akintunde.
Bignot told the club’s audioboom channel: “We’ve seen in recent weeks that when we go a goal down, it hasn’t gone so well after that.
“We managed to stay in the game and had three centre-forwards on the pitch in the second half. We’re disappointed not to get a result but we just weren’t good enough on the ball.
“As a manager and a coach, you can’t criticise players on the ball because on the day, we got into some areas and we just let ourselves down in critical moments.
“It (survival) is still mathematically possible and while it’s still possible, we’ve got to believe. We’ve got another opportunity next week to start a run because we’ll need a run of results to get ourselves out of it.”
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