I don't know why Undertaker would retire on NXT television..
Oh you meant call up the Ascension to the main roster? Let's not do that. Those guys are all gimmick, no ability. O'Brian has been in developmental since 2005 - and no development was made during this period. His matches with Big E Langston were the worst non-nameless-jobber matches in NXT history. A lariat and a flapjack are his big moves. He's 33. His angry face is my 'oh my god I'm never eating taco's again'-face. As someone said: what's up with the shouting?
Rick Victor should just man up and shave his head. Further: no look, no charisma, no muscle, never heard him talk.
The only okay part in their repertoire is the entrance. That's not enough, not to receive a push from the (retirement of) Undertaker. That can be better used to push a guy with more longevity and more talent than these two.
Last remark: although I - and I think every fan - love the entrance and atmosphere Undertaker brings, I think they should bury the supernatural spooky with Taker. Sure as hell not give it to the Ascension. They'll be to Taker's legacy what naming Justin Bieber the new prince of pop was to Michael Jackson.