Legal Question in Employment Law in California

The employer is entitled to set and change hours, duties, titles, compensation, benefits, leaves, vacations, holidays, etc. just not retroactively. In general, unless an employee is civil service, in a union, or has a written employment contract, they are an 'at will' employee that can be disciplined or fired any time for any reason, with or without �cause� or explanation. The employee's goal should be to keep the employer happy. If you have a written contract with specific compensation or term of employment language, then you could bring action within 4 years for provable breach.