Final answer:
When a supervisor notifies employees of below-standard performance, they should address the issue by communicating concerns, setting expectations, and providing support.
Step-by-step explanation:
When a supervisor notifies employees that their performance is below standards and their jobs are in jeopardy, the supervisor should take a proactive approach to address the issue. Firstly, the supervisor should communicate specific concerns about the employee's performance and provide constructive feedback. Secondly, the supervisor should work with the employee to develop an action plan for improvement, setting clear expectations and goals. Lastly, the supervisor should offer support and resources to help the employee meet the standards and monitor their progress.