I actually did a management analysis on P&G, and while it wasn't incredibly recent I still think they manage the company the same way as when this case study was written. Anyway, each department/brand is (or at least used to be) fairly well separated from the others... so it's not so much P&Gs marketing as it is Old Spice's department in particular as I understand it. There's actually quite a bit of internal competition between different brands of the same product, so they're almost like completely separate companies with the money going to one overall corporation.
Anyhoo... just adding some info for shit and giggles.