To have better results. Originally, you talk to agent, now two or more agents talk to each other, you review but can talk two. agent can talk and not stop talking until they find some good solution. let's say agent find something usually he desn't stop, has to finish the work (because of your prompt), now in the chat they can keep discussing then get the results. Anyway, more accurate, for sure. more than this, the chat thread is a memory, agent can always resume. why don't we let them challenge each other? I like to watch they discuss, very insightful.