ion Caitlin and Joan, who work in the same office, report to Barbara, who works in anothe monthly reporting forms, rather than sharing some of the tasks. Barbara had previously dismissed these complaints as routine grumbling. Now she is spending a month working in the office with Caitlin and Joan while the other building is being renovated. Within a few days, she can see firsthand how Caitlin and Joan spend hours each day fighting over responsibilities and roles. Barbara suddenly recalls that one other employee had complained about Caitlin bossing people around during her exit interview before taking a job with another company. Barbara realizes that the conflict is creating stress for everyone in the office. Barbara values both Caitlin and Joan because Caitlin is a star performer, and Joan has been with the company for a long time. What should Barbara do$?$