Just because you have an veteran instructor in town, does not give you ANY right to replace everybody's else classes with this one particular instructor and gave the excuses of a schedule change.
There was no schedule change. There was only kicking your existing instructors out and giving way to this veteran instructor face. Who the fuck does this instructor thinks he/she is?
You mentioned you will reinstate come January - why know what? Good luck in finding your now kicked-out instructors. We instructors talk among ourselves and news spread fast.
Your kicked-out instructor.