Group maintenance behavior would be exhibited by a project manager who: Works with subordinates to understand their problems. Pr
ovides the necessary support and technical assistance. Plans and schedules activities and resources appropriately. Contributes to the completion of project assignments.
A group is said to be a set of people ,together or working together to achieve a goal, so for there to exist a group, there must a goal to achieve. This is why a group maintenance in project management is exhibited by a project manager when he works with his subordinate to understand there problem so that it doesn't affect the project deliverables.