Establishing company policies

You have recently been hired as manager at a tech company that is opening a new firm. One of your first tasks is to design the layout and begin establishing company policies. You specifically select three people to work with you who have very different ideas on how the layout should be designed and what the company policies should be. In one of your first meetings, the three people started conflicting about the layout and other ideas that were expressed. Although you are not opposed to healthy tension, as this often generates creativity and stronger ideas, you are concerned that no one seems to be listening to the ideas being expressed which is of great concern.