Did Cowboys luckily find another DE/Edge Marshawn Kneeland in UDFA Byron Vaughns?

[America's Cowboy]

2nd Round Draft Pick DE Marshawn Kneeland highlights



Undrafted free agent signed Edge Byron Vaughns highlights



Both Marshawn Kneeland and Byron Vaughns have similar size, style of play and aggressiveness. Kneeland was picked in the 2nd round by the Dallas Cowboys while Vaughns was signed as an undrafted free agent.

Looking at their highlights, did the Dallas Cowboys luckily find themselves another Marshawn Kneeland in Byron Vaughns?

 

[Mcsports]

Kneeland weighs about 25 pounds more and appears more suitable to take on blockers.
Vaughns looks like an outside backer that would rely on speed.
But it'd be great if they both contribute.