Imagine you work at an NGO and are the manager of a project for which one of the deliverables is to provide formula to infants being raised at an orphanage. The team members working on this project come from several different countries and cultures. A few months into the project, some of the team members approach you. They are angry that the people implementing the project, the orphanage staff, are not buying the formula, but instead giving the infants cow's milk. When you ask the staff why, they tell you that infant formula is more expensive than cow's milk and that they are saving the project money so that it can be spent on other things. Besides, they feed their own babies cow's milk, they say, and their children are fine. Things become heated between some people on the team. Some think this is irresponsible, and the staff, who feel attacked, are defensive.

What would the project manager to diffuse the situation?