>>514956330
If the Anglo-French units didn't keep up they would have been obliterated. They were adopting all the same methods the Germans were using. The only real difference between both sides on the west is the Germans decided to go largely on the defensive, hence why the western allies were in fucking mud trenches most of the war. Allies eventually took advantage of how the German reinforcement system worked and did numerous smaller attacks to take ground.
If you want to see true incompetence go look at Italy.