Since when? Since before the timeskip? Yes, of course he has. But he's not smarter than Killer B or the eight tales, that's why he's taking indications from them...
Now I realized that the new chapter comes out today so... *reads last 2 chapter she'd forgotten about*
Ok, so I clearly see your point now. I understand why you'd ask that, up until now he had managed pretty well on his own with B but now he needs to be saved by others... which I actually think is a good turn of events, he was being to overpowered...
Anyways, back on topic, I think I'll agree with you... Naruto's not showing his capacity of strategy, technically he never had one but he proved he, when he tries, can think. Maybe he just didn't come up with a good strategy yet? Or he believes that he can just charge head-on and defeat them all?