Weaknesses
Gaining Separation
As I mentioned earlier, Johnston is good at gaining leverage off the snap against soft coverage. But I believe that he needs to improve on his ability to separate at the top of routes. Although he has good acceleration off the snap, his top speed is often matched by opposing DBs. This makes it difficult for him to get open deep down the field. I also found that although he is a physical route runner, he is adequate at getting off the line quickly against press coverage. This sometimes completely takes him out of plays because he is not yet where he needs to be.
Run Blocking
Given that Johnston has tremendous size, many people would believe that he is a solid blocker. Unfortunately, that is not the case in many circumstances. I should note that he is not a bad blocker, he just struggles at dominating players at the point of attack. He often wins when he is blocking smaller corners because he can overpower them. But I would not rely on his blocking ability when lined up opposite a bigger corner or a linebacker. Once he gets to the NFL, this will likely no longer be a big liability. This is because he will be shown how to use his size to his advantage.
Limited Route Tree
Although
Quentin Johnston is a tremendous athlete and gifted route runner, he is limited on the routes he can run. While at TCU, he has run only a certain number of routes, and this has made me question his ability. He is very effective when running short and intermediate routes due to his ability to pocket defenders. But I would like to see more of what he could do when running a variety of routes deep down the field. Once he goes through the pre-draft process, he will likely have to run a variety of routes to prove his worth. If he can prove that he is effective in all routes, then this will no longer be a weakness.
Taken from this report
quentin-johnston-scouting-report
Garret Burrows a college football and draft writer says
"I would argue outside of having good hands, obviously, the two most important traits of a receiver are a good route tree and being able to create separation. Johnston has a dangerously limited route tree and struggles to create separation. He has good strength and a solid frame, but he won’t go up against Big-12 defensive backs in the NFL. He also runs incredibly upright. It’s not often you see him really sink his hips in cuts."
Yes, these are things that can be learned, I am aware. But I would much rather have an already polished receiver who I don’t have to wait around to figure it out."
Full article here Spoiler-It's about him being way over rated
I see with the way the games changing i think a team that wants to emulate what SF is doing will have him graded higher than he should be. Minus the injury Jaxson Smith-Ngiba is a better prospect in a normal receivers room
