Business people are weird about numbers. You should have claimed 70% even if the replicas do nothing and made them work later on. This is highly likely to bite you on the ass.
+1 this is so true. You've lost, you've already publicly praised yourself that you saved 90%. They won't like the idea of tripling the costs, even if it is still below the previous costs.
Exactly, this is junior mistake I made too many times. There is a wisdom: Never tell anyone, when you’ve won the lottery.
In technical terms you need to plan ahead. The legacy mistakes are caused by actions in the past and will likely be made again, when you can’t change the strategy or approach to problems. You won‘t get budget for this AFTER you successfully made a change. „It‘s all solved now, we are good“. No.
Business people are weird about numbers. You should have claimed 70% even if the replicas do nothing and made them work later on. This is highly likely to bite you on the ass.