Sam is a student in dr. arthur's principles of management course, in which team projects are assigned. in addition to his full-time course load, sam also works 30 hours a week so that he does not have to borrow money for tuition, books, and living expenses. sam likes courses with group projects because he knows he can team up with good students who will work hard on the projects. he will undoubtedly miss some of his group's out-of-class meetings. what can dr. arthur do to groups deal with students in sam's situation?