How to obtain co-counsel with a case that is ongoing?

The case was recently on trail and there was a mistrail. Case charges include menacing a police officer, attempted aggravated assault and possession of a weapon. There is no weapon and no one was injured but the defendant who was shot on the scene. The person would like to know how to obtain new counsel/co-counsel due to the fact the current counsel is not acting appropriately to obtain an acquital. As well the legal aid society would not be an option due to the type of case it is.