First of all, i did not say we should pass up the chance to sign a top class attacking player. Second of all, even if we were to sign one, it should be one that fits our team. I do not wish us to be a Perez run club. (the first time).
I've yet to see him being rubbish in that position. But if that day comes, is good to know we have players who can step up too. And i'm not saying we should always play a three in the middle. I'm saying we should only do so for big games since: 1. the top teams mostly play with a three, 2. Pogba's defensive game isn't exactly top notch and 3. No point getting out man in the center.
Again, when i say building the team around Pogba, i'm not saying he should be the ONLY source of attacking impetus. I welcome Ozil but i do not want new signings to mess with our current team. New players have to improve the team and not hinder what we have right now.