Neither of these teams are (or at least should be) considered contenders. They are both essentially tribute acts that serve as the opening/comedy/fodder act that virtually every wrestling card has ever had.
The NMP should been given an opportunity to get over (not that the Ascension were ever given that chance) but should they not, they should not be disbanded. Instead, they should be kept around as enhancement for new teams coming up from nXt or as cannon fodder for the New Day or reformed Wyatts.
The Ascension should be treated the same way - first main roster victories for say Enzo/Cass, enhancement for Lucha Dragons and a quick win for Kidd/Cesaro.