Can a company reassign your co-driver to another driver without giving you some kind of notice.

My company reassigned my co-driver at his request to another partner., thus leaving me out in the cold. I had a 1 day notice that I would be out of a co-driver. They had been planning this for over a month and nobody informed me. I was hired as a team and they informed me that my only option was a solo NY run.

Shouldnt they have to give you proper notice when they are taking away from your current assignment or run?