Martin Foyle has told the Worcester News that he and his staff have had a 'nightmare week' after the 5-2 defeat at Hyde last Saturday.
"It hurts and it has hurt the players which is the most important thing," said the Hereford United manager.
"The reaction in training has been very positive and we certainly won't let that happen again.
"I won't be afraid to change a winning side or a losing side.
"You have always got to look for a response at any level after defeats and I always say good players will bounce back.
"We know Dartford will probably be a harder game than Hyde but we have been through the Hyde game defeensively and from a midfield point of view - we were not closing dow."
The paper suggests Michael Townsend may return to the squad for tomorrow's match.