Answer:
mediator
Step-by-step explanation:
A "mediator" has an important role of bridging the communication between parties/groups. He acts as a facilitator in order to hasten the process of making decisions or coming up with conflict resolutions in a timely manner. He does this by setting a schedule for the parties to meet–often resulting to a conference. This will allow each side of the party to voice out their opinion regarding a common concern. Such process is deemed to be a "cost-effective" way of handling matters/issues.