Are team leads a thing of the past? Together with the «Team Lead Struggles» community

Team leads are commonplace in organizational structures, which can serve as both saviors for upper management and troublemakers for teams and leads alike. Is it possible to structure work effectively without them? How do you teach teams to organize themselves? When do you absolutely need team leads, and what do you do if you’ve already gotten rid of them?
In the grand tradition of amicable YaTalks debates, the speakers will discuss their differing thoughts and views on those questions. The winner will be determined by the audience.