[przemo_li]

I think you where sold on "scrum is all you need"lie.

Kanban isn't there to dictate process, but as a tool to correctly and truthfully inspect your process.

E.g. we recently used length of UAT column to prove that we need more business people doing testing in next few weeks as we close to feature release and more tests take form of exploratory testing.

Scrum isn't blind to benefits of such inspections either! So doing simplified Kanban board is frequent.