see a lot of dancing going on in this thread.
as a guy w/ no horse in the race:
a) obviously vince is worried about backlash from concussions, head trauma and its lasting effects. all of the backlash in sports right now is on the nfl. (i feel there's another steroids wave coming too) he's trying to lay as low as possible. bringing bryan back and the worst happening would shift a lot of shat on his plate. w/ the roster, bringing in the tna guys like styles and airies, its just not worth it, presently
b) where are you gonna put bryan? like it or not, w/ how over he is, he's a main event guy, period. cant mid-card him. we've done this before, the fans would have a fit and turn on just about any face "holding bryan back, because he deserve it." they'd have to give him a strap which means he would have to WRESTLE. cant hide him like you did w/ big bad brock, last year. and what happens when he wrestles? he has one gear. i liken it to a guy like rg3. he practiced and said all the right things about sliding and avoiding big hits, but in the ebb and flow of a game, he always reverted back to instinct and got crushed over and over because he's too small and had an ongoing injury history.
c) what about dreamer? not as cruel as d), but the skinny is nobody care about tommy dreamer. he was old when he got to the wwe w/ the reputation as a meathead that took big bumps for an uncivilized big bump company, so for him to wrestle w/ a concussion, its short term outrage flopping. nobody care about an old occasional "damaged goods" wrassler.
d) "its his career tho." vince done survived the droz shyt and w/ all do respect to the dead, nobody cared about droz. and i mean that in the broadest sense. these kids and smarks love bryan. he get paralyzed in a ring, there would be hell to pay and the check would go straight to vince. its just not worth it. the show goes on.
e) so why keep him around? vince dont want his side bytch fukkin w/ them niggs "over there." not saying he could save tna, but this is just safer hoarding, so to speak.