Wallace IMO gonzo has been pretty solid.
Go back and watch the games, he ran the same route ALL the time, that stupid out route 8-12 yards down the field, never once was used creatively to get his speed in space. A go route is the lowest % pass in the nfl! that's the only route Sherman used his speed for, no deep posts, not even a small crossing pattern. Wallace is the guy who scored on a cross against the Giants 2 years ago, caught it and ran across field and still beat the defense to the edge.
So, he's lived up to his price tag? I like what he brings to the team once Tannehill starts actually hitting those deep balls and creating a legitimate deep threat, but until then, he's a disappointment.
Then you have TY Hilton and all the others he passed on in the draft due to some weird fear of drafting WRs in the early and mid-rounds; a Parcellsian fear of playmakers.