I’d love to! There are many Lean tools out there specifically for improving flow such as like work cells, changeover reduction, and heijunka. However, since this was an introduction to Lean, we only had a a limited time to explain the concept. I’d recommend more reading on Continuous Flow concepts and tools.
If you are in non-manufacturing one of my favorite books is Value Stream Management for the Lean Office by Don Tapping and Tom Shuker. It talks about some of the continuous flow tools available to apply.