In terms of the NFL, you must've missed the last half of the season because, despite missing major time with injury, wandale was their go to guy. He had a good year despite injuries and an atrocious QB situation.
Levis played well but was up and down. Much like his time here, fans latch onto the amazing highlight plays and get amnesia about all the other things. That said, he massively improved his game since his jr year which is the year in question. That offense was perfect for him because it was pa and limited routes which suited him because he doesn't process routes quickly.
Both are really irrelevant because we're talking about a particular season at UK. That season, Levis could deliver the ball pretty well (regularly missed open throws) but the dual threat was his main weapon. Wandale was constantly open no matter what other teams did. His routes, toughness, rac, football IQ, and selflessness was truly elite. He too should be proud of how far he came since his time at Nebraska.
In terms of OC, it's fair to wonder why our wr core looked better under scang than a year older under coen. Imo it's because for whatever reason coen flipped the two and weirdly used them opposite of their skillset. Not surprising considering the same guy wasted over half the season (and at least one game) trying to force crod into outside zone.
Hopefully the next guy will be able to better suit the offense to the talent.