I'm sure the snap numbers at each position is buried in the annuls of the team's metrics, never to be seen by any of us... I was simply trying looking at whether he was playing the NT position (i.e. middle of the 3-4) or not. Thus I assumed:
If Slaton and Clark were in together, Clark was playing a DE role and Slaton the NT role. Slaton played around 30% of the snaps the first 14 games, 40-50% the last 3. I'd assume Clark was also resting a chunk of those snaps (he played 70-80% of the snaps typically)
If Reed-Clark-Lowry were in together, Clark was playing the NT role. Each player had about 60-80% of the snaps for the first 14 games (Lowry had very few the last 3 games). Clark also took most of the snaps in pass rush when there were 2 DL.
Obviously, the gap they are playing when in that role is designed to fit the defensive play called at the time. So, if Clark is truly only a one-trick pony (i.e. playing 0 tech), then he really isn't the pro-bowler people talk him up to be. The NT needs to be able to flex around the 0-2 tech positions as necessary.
I agree he isn't as good at DE, but the last couple years, he was really only "solid" at NT and not great.