I think the key difference between Adidas and Nike/Reebok, is that Nike and Reebok were both run from India, as a marketing tool to help drive interest in those 2 brands in the India market. India has been a failure for Nike. They're losing money hand over fist, and closing down stores rapidly. I think India is a lot tougher to conquer, than many would believe, but the opportunity seems so great so we continually see sportswear brands trying.
Adidas is run in the UK as a speciality sport, alongside their Rugby/Hockey/Cycling. It's away from HQ, run by a team who know what they're doing.
I think Amos is right in saying that the slow cautious approach for smaller brands is a good one. Particularly if they want to stick around. That said, I imagine Phantom/BlankBats are not yet full time enterprises - so they can afford to be cautious.