What if Kakashi used shadow clone jutsu & started bombarding Itachi with ninja stars?

As if Susanoo can't stop ninja stars. It doesn't matter how many clones Kakashi decides to make, or how many weapons he decides to throw, Itachi's Mangekyo Sharingan can still defeat him easily. Though if that's all Kakashi did, Itachi's Mangekyo Sharingan probably wouldn't even be necessary. He is much too intelligent and skilled to be defeated by something so simple.