I find it interesting when people mention Tate they say that he has been so well coached that his ceiling isn't quite as high. I have to say that I think that it is a bunch of garbage.
Linebackers and Olineman, I understand ceiling talk, but Qb's no.
Qb is a special position that is more about internal things that can not be measured by a 40yd dash or a bench press. Qb is about efficiency, accuracy, understanding your offense, understanding the defense, leadership, savvy, experience, feel for the pocket etc...
This is a position that is about games and not about practice. I don't know what is happening behind the scenes and if Tate is doing the work necessary in the film room and practice fields to retain his job, but don't take these practice reports too seriously. Passing against a vanilla defense with scripted plays is not telling you much other than they can complete passes against air. Remember we heard similar reports in the fall last year and we saw what happened when the lights went on.
Also remember that a 40yd scramble against a base defense that is not scheming to stop a qb run will look much more impressive than a swing pass that hits the rb perfectly in stride that allows him to gain 20yds instead of 2 because he had to adjust to a slightly off mark pass. Where I think the latter is much more important in the 3rd qtr against Iowa to keep a drive going.
Qb is so hard to project in the NFL because it's so hard to measure. Whenever I hear ceiling and talent associated with the qb position I see R. Leaf and P. Manning going into the 98 draft. P. Manning was over coached and Leaf had the big arm and upside.