In my experiences, I have never worked in a project with multiple project managers. Many times, there are project leads that support various activities within a project. By having multiple project managers, it makes the communication with the team difficult. The Project Manager has a high level of understanding from the project lead and the leadership. Due to multiple PM, it may be challenging to get the same point across to the team. In my recent project, there is one project manager and several projects leads from different team. For example, project lead from planning and purchasing, Sourcing, R&D, Manufacturing, and Quality. In my opinion, I don’t feel it is a good idea to have multiple project managers from the same team as it makes the communication complex which results in missing a milestone.