Vince McMahon and Triple H have different philosophies when it comes to changing the names of workers once signed to WWE contracts. One recent example is Kenta. We're told Vince was adamant they would have to change his name, with Triple H feeling it would hurt WWE's ability to use Kenta to help their business in Japan if they gave him a new persona.
WWE has been "cold" in Japan in recent years and Triple H is hoping that Kenta can provide a boost in the market. He also didn't want Japanese fans to feel WWE was being disrespectful, especially after Kenta's signing got a lot of media attention in Japan. Right now, it appears as though Triple H will get his way and they will move forward with Kenta under that name in WWE.
With that being said, Prince Devitt is likely to undergo a name change. Apparently this is a situation of Hunter "picking and choosing" his battles with Vince and the fact that he feels altering Devitt's name won't do the damage that altering that of Kenta would have done.
However, just to show how important the name changes are to Vince, he wanted former All-Pro NFL linebacker Shawne Merriman to change his name. Vince was also considering a new character for him that wouldn't even acknowledge his background in the NFL. Things between WWE and Merriman ultimately fell through, with one source indicating Vince's direction played into that.