Most supply chain practitioners believe that there is a need for a rough long term planning engine (S&OP) and yet another for plan execution (S&OE).
I find it interesting that most companies choose their supply chain planning vendor based on how nice it looks but pay very little attention as to how good the quality of plans are. Not all planning systems are created equal.
Having S&OP and S&OE as two separate systems does not make sense, it is redundant and costly. Having two systems implies two disjoint systems that do not understand each other’s data model.
Thanks to Covid-19 almost every supply chain is being re-examined to become more resilient. But there is only so much you can do! There are external factors over which you have no control such as demand changes, up or down, tariffs or dock worker strikes!