The two teams face off at the City Ground this evening in a huge relegation clash, with Dyche coming under some pressure after Forest's 3-1 defeat at Leeds.
Edwards believes 'brilliant' Dyche is doing a good job at Forest and says it is difficult for any manager to be a success in modern football.
"I genuinely think the whole country is quite angry at the moment, not just in football," Edwards said.
"I'm not going to go all political now. There's not that many sets of supporters that are happy at the moment, there's a lot of anger around.
"Now you've got to win consistently and play well consistently to avoid any sort of criticism.