From DE-6 to DE-25 is a desired effect and is the default of a DBR (synchronized) system that releases jobs based on the drum signal from the constraint. NE-10 and NE-20 start to become negative entities that if they exist in our future could cause our good idea to become a train wreck. What we need now is an injection to overcome the possibility, or eliminate the entity of “The efficiency measure starts to go down.”
I want to thank Bruce Nelson for this series of posts on the TOC Thinking Process analysis. As you're seeing a complete TP Analysis takes time, but the results are worth the effort.