Where can we introduce continuous flow?

Question #3:  Where can we introduce continuous flow?

Are there areas where the operation cycles very quickly, and change over serves several product lines? Incorporating continuous flow would mean slowing it’s cycle down to near takt time and dedicating it to a single product family, this is not practical.

It makes more sense for these types of operations to be produced in a “batch operation” process and control its production with a supermarket based “pull” system.

But what prevents us from using continuous flow in all other areas?  Where are all the other areas  where we can go form raw material to a finished product in continuous flow and still stay within that products takt time?