For me, one moral of the story is when approaching any issue in a live system, it often pays to go back to modeling the actual problem instead of iterating on b

For me, one moral of the story is when approaching any issue in a live system, it often pays to go back to modeling the actual problem instead of iterating on broken assumptions. Good solutions should have documentation which explains their take on the problem and the reason the solution in particular was chosen versus other potential designs. Of course, outsourcing, interdepartmental or interpersonal politics can create commercial misincentives to remove such time and money saving features...