re: Why didn't Miles and Cam see Etling was better?

Very simply...you fall in love with arm talent. I'm sure when the two of them are in shorts and a helmet throwing 40 yd go routes against air to your talented 5 star WRs, Harris' throws look all world compared to the considerably weaker throws of Etling, which tend to hang just long enough for any competent SEC safety to make a play on. Of course there is more to football than go routes, but since you can't really simulate a game during practice (where Etling's short to intermediate game would shine), you go with the guy with the gifts.