Dealing with employees who undermine their colleagues by speaking negatively behind their backs and attempting to sabotage them is a significant challenge for managers and leaders. Here are some strategies to effectively manage such behavior and foster a positive work environment:
1. Identify and Analyze the Behavior
Identify the Source: Determine which employees are engaging in backstabbing behaviors and what factors may be triggering these actions.
Analyze the Reasons: Understand why these employees are acting this way; is it due to personal dissatisfaction or professional conflicts?
2. Direct and Clear Communication
Hold Individual Meetings: Speak directly with the concerned employees to discuss the observed behaviors and understand their motivations.
Provide Constructive Feedback: Offer feedback constructively and explain how their actions impact others and the workplace environment.
3. Promote a Positive Organizational Culture
Foster Respect and Collaboration: Use training programs and team-building sessions to strengthen a culture of respect and collaboration.
Encourage Participation: Create more opportunities for employee participation and teamwork to reduce destructive behaviors.
4. Establish Clear Policies and Regulations
Define Professional Behavior Policies: Develop and communicate clear policies regarding professional behavior and make it known that backstabbing is unacceptable.
Enforce the Rules: Consistently apply these policies and take disciplinary action when necessary.
5. Resolve Conflicts Effectively
Act as a Mediator: Serve as a mediator in personal conflicts between employees and strive to find solutions that reduce tensions.
Hold Joint Meetings: Facilitate joint meetings between conflicting parties to promote understanding and resolve issues.
6. Continuous Monitoring and Evaluation
Monitor Behaviors: Continuously monitor employee behaviors and stay aware of any changes, whether positive or negative.
Evaluate Feedback: Regularly gather feedback from employees and make necessary adjustments to improve the workplace environment.

References:
Harvard Business Review: How to Manage Difficult Employees
Forbes: 10 Tips For Dealing With Toxic Employees