I actually think he's more effective at DT than NG. Gets no push whatsoever at NG. I have actually witnessed a play or two where he moved his man back from a DT position. That said, he's not even starting on this defense. That should tell you about his development.
Totally agree with this. In fact, I have posted same in just about every Elam thread over the past year. UK has some fronts where they put Elam in what appears to be a 3 tech (hard to tell from sideline shots) and he seems to do a decent job "holding" the B gap and getting involved in plays between C and T on his side. As a 0 tech, he is just not getting involved in many plays (to either side) at all.
There are basically 2 approaches to playing as a 0 technique NT.
#1, explode into the C, read you key (usually flow, and work through the center to the play side.
#2, a stunt or slant to one side or the other.
Both of these technique require an explosive charge to effectively play the position. However, if playing a 1 gap technique (1, 3, 4i or 5) you are already "in" the gap which is your responsibility so "defensive charge" is a
little less important. With todays 4 man spreads there are really only 4 gaps which is probably why more and more "3 down lineman" defenses are putting the NT in a 1 technique. JMO
Peace