No one theory can address all the constructs all at once! But, many theories, eclectically, yes! Because theories can complement each other!! So, look into different theories in this area and take important aspects from all!
You may check Karl Weick's sense making theory. Identity threat is a core concept in the theory. Organization change often causes identity threats to its members. I think people have individual differences on perceiving and coping with identity threat.
Main Zhang, you are right identity threat is a common them in organizational change data especially when intended change imposes challenges to the core and well-stablished activities.