In the past 10 years I can think of two top 50 LB that were NFL ready to take on blocks. McClain and Ragland. The NCAA with its spread and quick hitting plays is what it is.
If you watch Evans he gets hooked and driven too. Worse he is a hug question mark in coverage. This isn't your daddy's NFL where teams run it at least half the time and Evans could easily become a 2 down SAM type.
There are very few can't miss prospects. Vea doesn't get off blocks, Smith and Ridley are small, Fitzpatrick and James have no settled position, Edmunds and Daniels are raw, who knows what Moore can do with a decent QB, Payne had poor production, and on and on.
The reality is that compared to the other prospects LVE compares extremely well. He is athletic enough to cover,a nd has the size and length to do everything we want against the run. He is a hard worker that improved in both regards last season. His bust potential is no higher than Evans and his ceiling is much much higher.