I function at my peak whenever and however. Going substandard is not an option and is very definitely not linked to the environment or the behaviour of others. When alone, I work excellently, when in a team, I seek to perform my aspects of the work excellently, and ensure that the persons who need to cooperate with me, do so, because I loathe the idea of another person affecting my quality of work by their incompetence. Doesn't mean I do their work for them; I just make them do their job as well as I do mine. That's often the case when I've to work with some other students on a joint audit case.
Of course, I can lead capably when the situation calls for it, and I tend to notice that when real mettle is tested people almost automatically fall back on me, and obey when I ask them to perform. For the most part, however, I allow others to lead for day-to-day affairs, as long as they do what is in the best interest of the team. As per the classifications that textbooks love to make, I'd fall into the 'quiet leader' category. I've been told that my leadership is cautious but sound.
Now, interview done, I'll ask the same question of you.