If such skills are important to her, there are many opportunities to develop them without adding extra courses. For example, to build communication and group skills, Lee could join a graduate-student seminar group. Organizing one would also help to strengthen her leadership and group skills. She could join a disciplinary society and take on the responsibilities of organizing workshops and planning meetings. Making contacts, initiating plans, and making public announcements will all be helpful. Joining a Toastmaster's Club could help to strengthen communication and public-speaking skills.
To better understand the culture and work style of industry, she could try to arrange off-campus, for-credit internships to take the place of courses. She might find an off-campus adviser as well. She could practice explaining the importance of her field to off-campus or civic groups.