The invaluable Minor League Ball, by John Sickels, has an interesting note on Brett Wallace:
There are all kinds of stories/rumors floating around out there about how disappointing Wallace has been, with scouts picking apart his swing mechanics and many predicting that he'll never pan out at all.
He's clearly got some plate discipline issues to work out, too. I am no expert on swing mechanics, but while it is apparent to me that expectations for Wallace were too high, I just can't get behind writing a hitter off after 51 games and 144 at-bats. Sociologically and psychologically speaking, people tend to over-correct in cases like this. Everyone was too high on him, now people are swinging back in the opposite direction too strongly given the evidence we have. Serious swing flaws or not, it is way too soon to say that he can't or won't fix them.