John, they don't try, this is the point. They have scouts that get PAID to have "crystal balls"
We have guys like Gunner, who take a lot of time to watch video on college kids for free (I would assume), and seems to be often right in his evaluation.
Watson is probably going to blow by Taylors 2015 TD's and yards, when Taylor had his "full compliment of receivers", as a rookie
I hope they do take a QB in next years draft, I really do