Duvernay was a home run specialist his first year on basically straight downfield routes. He had an unmemorable sophomore year and then resurged as a junior as more of a possession receiver who could, if the right lane opened up, still take it to the house. This is pretty much the only year where he seems to have put it all together to become a truly top end receiver. He wasn't even on the Biletnikoff watchlist at the beginning of the season.
Jake Smith is a true freshman who wasn't even an EE. You can be unconvinced all you want, but he's looking like a more complete receiver at this point in his career than freshman, sophomore, and probably even junior Duvernay. His HS film is basically a montage of him taking it to the house over and over again for about 3-4 years straight and he was the Gatorade player of the year.
Jake runs an unverified 4.37 40 yard dash, while Duvernay reportedly can hit 4.30 and claims to be one of the fastest people in all of college football. Duvernay is slightly faster, but either has the speed to take it to the house. We've still never replaced Marquise Goodwin's speed. Why aren't you worrying about that?
As far as receivers, I'm more interested in who can replace Collin Johnson. I think we'll be pretty well off with Smith and Eagles, but Epps is the bigger concern. If he can't cut it, someone else needs to step up.