I think they are.
This is actually good coaching. You have to see what you’ve got. If he is anything other than a returner and part time wingback, they need to find out. Let him **** up. Who cares? The season’s a wash. If he improves. Yay. If not, then he’s just a KR, and there’s nothing wrong with that.
I had a discussion on this board somewhere with another poster who basically saw what I did. VJJ needs more time with the running backs. There are drills and techniques that get taught to backs that, many times, get overlooked with receivers. Gauntlet and tire drills are one. At practice, while receivers run their routes, backs hit the tires, gauntlets, and do ball security drills.
So, receivers try to just run. A back knows to change hands per side, get behind their pads, and to seek and initiate contact. If I were the coaches, I’d leave him with the backs this week, put him back in and see if he fails again. If he improves, yay. If not, again, who the **** cares? A 3rd round pick for a starting returner is good value, even if that and a glorified Wingback is all he ever is.