It's mentioned in the video that many people missunderstand rule number 3 (I was one of them), but upon reading over it like 5 times it seems to me like it actually doesn't make sense. "Each crew member does at least at least one task during the installation, but no more than one task a day", according to the explanation it means not all 7 need to be chosen but the people chosen must do a one task minimum, however, if someone is chosen then obviously they do a task!( otherwise what els would "chosen" mean?) So how could the "Each crew member does at least one task" be saying: of the members you chose they will at least be doing one??