No he's a really good pass rushing 3 tech. Run stopping DTs are a dime a dozen and they get paid accordingly. Only guys that affect the pass get paid, Fletcher Cox, Chris jones, Heyward, Aaron Donald, etc. So, the guys who get paid to make football decisions clearly disagree with you.
Yes he can be better at run D, but our main issues are elsewhere. Need a better 1/NT, DD lost a step, Werner missed games and was hurt, Honey Badger couldn't tackle and neither could our other Safety.
To call a 2nd year DT who got 7.5 sacks a bust is just beyond stupid.
Also, what do you mean by 'start'?
He had 709 snaps, Shepherd had 568, Saunders had 461, Ridgeway had 264. He played ~70% of all D snaps. That's a really high number for a big guy. I'm starting to think you have no clue about any of this.