I'm very much with you on this. I understand the hate people have for Robinson as a tackle, but I'm very much aware of the potential and the immediate product that is Cam as a rookie actually isn't that bad. At guard I think he's better than lamp simply because he generates more push, power, aggressiveness, and has a mean streak. He will work fantastically as a pass protector at guard because his trouble in pass protection is getting depth on his kick slide and then also the occasional lunging forward with his punch, which will both be neutralized at the gaurd position for a couple of reasons.
As a Tackle I think he'll be just fine in his rookie year because he won't face the speedy finesse rushers. We've got Pitt twice (Harrison, Dupree), Cincy twice (Dunlap, whoever) Cle twice (Ogbah, Garret) NFC north (Ansah, Griffin, Flloyd, maybe Matthews) and the AFC south (Watt, TEN rushers, Fowler, IND rushers) along with OAK (Mack, Irvin) and MIA (nobody). I think of these rushers Matthews, Watt, and Irvin would give Cam trouble at tackle and that's it. So I'm ok with Cam at tackle this first year.
After all if that I would say that I don't want Cam at 16 because I think that's too soon, but I would love him in a trade back