Alberto is working with a group of fifteen people to coordinate the merger of two corporations. Everyone in the group is highly qualified, offers relevant information, and has high norms. Still, the group seems to be slow at outlining a definitive plan for the merger. With the information provided, what would be the fastest and best way for Alberto to increase cohesiveness and productivity? hold long meetings at a restaurant or in a social setting stimulate competition within the group invite more members into the group decrease the size of the group decrease the time members spend together