That certainly was unpleasant. It was one thing for Mohamed Sanu not to go in the first round, as he seemed to be universally considered to be grouped together with many other second-tier WRs after Justin Blackmon and Michael Floyd.
To suffer the indignity of falling down to the third round though, to be picked after sleepers like T.J. Graham and DeVier Posey, that is really hard to square. Maybe Sanu isn't the best WR in the draft this year. Are there really ten or more receivers who are better though? Even in a very deep class, the answer is clearly no. Stephen Hill and Brian Quick have very high ceilings, but it should be safe to wager that Sanu has a better chance of contributing than either over the life of his rookie contract.