Job rotation (mass noun):
The practice of moving employees between different tasks to promote experience and variety
'Most employers in this sector focused on internal reshuffling and job rotation initiatives, instead of taking on new staff.'
Types of rotation include:
Task rotation, which usually takes place in jobs that involve a high degree of physical demands on the body, or a high degree of repetitive tasks that can become extremely tedious.
Position rotation is the process of laterally moving an employee to different positions, departments or geographical locations for the purposes of professionally developing the employee by exposing them to new knowledge, skills and perspectives.
Source: Study.com: Introduction to Management
Further information on job rotation is available at: Wikipedia