You complained about Tate; they brought in Johnson. Now you're complaining about Johnson.
Look, I'm with you in the sense that I wanted the team to go in a different direction (I wanted the team to go after Titus Young in the draft, and/or a legit middle/deep receiver). At this point, though, we're probably stuck watching either a veteran struggling to grasp the offense, a stiff with lousy hands and no route running skills, or a young player from a non-passing college who missed a lot of last year's learning camps and then had to deal with the lockout this year.
Given the choices, I'm going to hope Johnson keeps working hard and finally has the light go on.