Hereford boss Graham Turner swung the axe after his side's 2-0 defeat by Northampton Town - and saw his team do even worse against Milton Keynes Dons.
Hereford conceded three second-half goals to lose for the eighth time in nine League One away trips as they went down 3-0 at Dons.
Turner, who made five changes for Saturday's visit of Cobblers, made five more for the trip to Milton Keynes.
Six minutes into the second half, Hereford had goalkeeper Matt Murray stretchered off.
And things went downhill from there with Peter Leven beating Craig Samson from the spot six minutes later after a foul by Broadhurst on Miguel Angel Llera.
Then, Baldock got away from Taylor on the right and his cross was bundled in at the near post by Mark Wright.
Two minutes from time, Johnson rounded off a disappointing night with an excellent run and shot which defeated Samson.