bcr and redshepherd said everything I would have said.
Hook training might be a great way to start, and develop trust in both the snake and the keeper.
Frequent, but brief, handling sessions will teach the snake that the enclosure opening does NOT equal food. The more times the enclosure opens without food being presented, the more acclimated to it the snake will become.
Last bit of advice: suggest to your coworker that they join BP.net!!!!
It's a great community with a wealth of information. This way your coworker can do some reading on their own and learn more about their new pet.