Can I change the driver for the load tracking?

Sometimes we assign a different driver at the last minute.

Yes.  You can update the driver's cell phone for load tracking as long as the load tracking has not been started by the driver.  To update driver's cell phone, please click the link in the load tracking request email you received.  After you update that info, it will remove the first driver's info and a text message will be sent to the new driver where they can then start the tracking.