Groups that are temporary and have a specific deadline to complete a task typically demonstrate the greatest increase (i.e., positive change) in productivity Group of answer choices just before reaching the final deadline. at the beginning when starting the task. about halfway between starting the task and reaching the final deadline. at the beginning if the group is small; near the deadline if the group is large.In David Rooke and William Torbert's Harvard Business Review article "Seven Transformations of Leadership," they argue that the most effective teams are those characterized by which leadership culture? Group of answer choices Achiever Strategist Expert Opportunist