About the only special effort will be placing the highlight you shine on your performers back. You must not place the performers close to the walls of the set because will not be able to light them correctly, they will cast shadows you don't want, and the set lighting will be messed up. You will be looking to see how the light and shadow actually looks with them. Some performances will be scripted plays and others will be less formal and the people may be moving randomly around. You may have it easy and be doing a talk show where everyone is setting all of the time.
Film makers rely upon one camera for the majority of all movies which have ever been made.
The cost of film and the multiple costs for talent and crew, plus location fees and the many other expenses involved with filming required the movie maker to devise short-cuts. Film style shooting is such a short cut. The script is broken down into scenes and these scenes are shot out of order. The rational and the method would be for the camera, lighting and all the other considerations to be set up for the delivery of all of one actors lines from a specific mark. Now lets say that actor was having a conversation with actor 2.