Do tell how lower midcarders like Kofi and Swagger would make NXT a "legitimate" brand? Their demotion would be laughed at and the show would continue to do exactly as poorly as always. Hell, you could even send Cena to NXT and I'd bet it still wouldn't make much of a difference. If you're not on one of the top 2 brands, you don't matter. Hell, even if you're on SmackDown, which is way higher than NXT, you almost don't matter unless you're one of the top 3-4 guys.