Obviously, with mobile SAMs that is the challenge.
The first thing that I would do is draw a map of the flight paths of the missiles that made it through and see if there is a trend or possible corridors.
Then locate other targets near the flight paths that made it through and attack them on the next wave.
The next thing I would do is draw several maps of the shoot downs and see if there are trends that show flight paths that never make it through. Avoid those flight paths on future waves.
That is why I made the comment that RU must not be getting battle damage assessments (BDA). They don't seem to be making any adjustments based on success or failures.
Just my perception.
Better classify some of that as there are many Russian trolls here, some of whom no doubt report back to St Petersburg and FSB/GRU as applicable