Final answer:
To improve management of Margie's work team and reduce frustration among career-oriented employees, Margie's supervisor can implement effective team management and communication strategies.
Step-by-step explanation:
One key aspect that Margie's supervisor can focus on to improve the management of Margie's work team and reduce frustration among career-oriented employees is implementing effective team management and communication strategies. By implementing these strategies, the supervisor can ensure clear communication, resolve conflicts, and provide guidance to the team. This will lead to a more efficient and harmonious work environment, reducing frustration among career-oriented employees.