The battle at Tarutino is a huge mess. No one goes where they are supposed to, there is no strategy, it’s just a dumb free-for-all. But, Tolstoy points out, that’s pretty much how all battles go.
In any case, it doesn’t really matter. Even though none of the goals that were set out for this battle were achieved, the bigger picture shifted a lot. This battle is the first push to rattle the French army and set it on the run.