Most of what has been described earlier happens because it's hard to take a big picture view on processes as we evolve as a business. We fall back into the "we have always done it this way" mode and try to adapt best practices and apply them to our context. We set up story boards, have stand ups, estimate stories, measure velocity, and reward bug finders. It has worked for us in the past, or everyone says it has worked, so we believe that it can't hurt us. This seems natural. However, what we may need is a new set of best practices that can help teams to navigate the ambiguous phases when there is no luxury to customize processes. When you do have the luxury, I strongly suggest that you tune your processes around the specific goals, culture and needs of your teams. The following are the new process guidelines that I would recommend.