A manager at a bank believes that the bank's hiring budget should be increased so that experienced employees can be hired. Another manager disagrees with her and believes that hiring costs should be reduced. He suggests recruiting talented but inexperienced employees who will accept lower salaries. A conflict manager helps them work together to come up with a plan that allows them to hire both experienced and inexperienced people without increasing their budget. In the context of the styles of conflict management, the conflict manager in this scenario is a(n) .