Eli Goldratt’s Theory of Constraints at its simplest says ‘No system is operating at maximum potential, if it were there would be infinite and perfect output, there will always be at least one limiting factor, or constraint, be it machinery, a person, policy, belief, behaviour or whatever. Any system is only as strong as its weakest link. To improve efficiency focus on overcoming the most significant constraint, work on that until it’s no longer the biggest bottleneck. Identify new biggest constraint, and repeat.’
Goldratt also said that many constraints are unwittingly set up when we change a part of the system but omit to undo the rules required to uphold the old process!
Wikipedia has a good overview of TOC
In the context of your Church experience what are the big bottlenecks? Can you think of times when old rules are carried into new processes?