A disadvantage of the matrix structure is that a. teams may be too decentralized and incapable of making a decision. b. employees' supervisors change, which can cause confusion. c. people have more work to do because they are assigned to special projects in addition to their regular tasks. d. employees have to report to more than one supervisor, which can cause confusion about who is in charge of certain situations. e. the quality of work decreases due to project teams' lack of attention to regular job duties.