That’s a good question. As most ideas don’t work, the team has to go through many ideas before finding winners, so it’s quite normal to have different people working on different ideas in parallel continuously. When you do find an idea that passes the initial test, you may choose to keep only 1–2 developers driving it to completion while the rest of the team keeps pursing other ideas. If you wish to pursue the winning idea with more people and less fragmentation (again, ideally not more than 10 person weeks per step-project) that’s fine too — you’re pursuing fewer ideas in the quarter, but with higher confidence . Generally speaking, even in old-school long projects, different people are working on different parts of the solution and may do different things from iteration to iteration.