Can a company change their policy with no warning?

Asked about 1 year ago - Memphis, TN

• Employment
• Employment Lawsuits

On the last day of quarter a letter was sent out telling us of a policy change to drop some back to part time. Then after this was over they are going back to original policy which is if employee does not have a 30 hour avg for quarter they are told and put on a one quarter probation to get your hours up then all goes back to normal. If you don't you go back to part time. they now changed policy to the year, quarter and month. Any of 3 you are demoted and loose all benefits. the problem is not the policy it is the fact they did this with no warning at all. All previous policy changes had at least one month notice before it went into effect.So far i have found 15 people this effects. \
Thank you,
Inge