My colleague Jason Yip posted some very interesting thoughts on roles and hand-offs and I thought perhaps I could express them with some images... As I really like images better than words.

Jason mentioned that usually this is what happens:

Waterfall Project

Some Agile projects

They miss the point by assuming this is enough:

Ideally, this is what we want

“We're not just re-ordering hand-offs, we actually want to remove them.” (Jason Yip)