Serious question. How many times did the US change direction in WWII.
Wars are chaotic. You can’t plan the unexpected so you have to change tactics along the way. I am sure they did this in WWII many times. You have to adapt to your enemy.
If something is not working, you don’t keep doing it.
I have a saying I wrote a long time ago;
“If something doesn’t work on the 3rd or 5th try, it probably won’t work on the 1000th try. So try something different.†...REB