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.

immediately make the group smaller

reward anyone who can devise a workable plan

stimulate competition with other groups

invite more members into the group

hold longer meetings at a restaurant or social setting