The Spireites came back from 2-0 down to salvage a draw and leave Coleman in a dark mood.
He said: "This is the worst I have felt as a manager and the worst I have felt in football.
"It's hard to have a go at the players who have run themselves into the ground for three days but we have gone to sleep in the last five minutes and it is not the first time this has happened to us.
"The galling thing is that we didn't take our chances to make it three or four nil and then we defended too deep.
"They haven't had a sniff all game and it's the story of our season - we have battered them and we should have won but we haven't won. We have got to play, not just for 90 minutes, but 95 and if these players won't do it, then I will have to get players in who will.`