"If we use additional resources, then we can increase our productivity rates, and quality, to a point, but additional resources can be problematic."
Internal Facilitation such as the kind the project manager should perform, or External Facilitation such as the kind the project sponsor should perform, involves developing a relationship with a the project team a psychological contract in which the team gives you permission to help them because they consider you an expert and trustworthy facilitator. Building this relationship is critical because it is the foundation on which you use your facilitator's knowledge and skills; without the foundation, you lose the essential connection with the project team that makes your facilitation possible and powerful. To build this relationship, you need a clear understanding and agreement with the team about your role as facilitator and about how you will work with the team to help it accomplish its objectives. I have found that many of the facilitation problems my colleagues and I face stemmed from lack of agreement with the project team about how to work together.