No kidding, but if someone thinks his game resembles Evan Turner I don't think it is a totally out there comparison. Walt Williams didn't exactly come in and tear it up initially, either.
What am I trying to say: I hate comparisons like that in general, because most of the time I see them and think about what the kid was (or imagine what he would have been) like in high school, not his best year in college or how high he got drafted.
I don't think anyone saw Evan Turner as a potential college superstar out of high school, they probably saw him as a 12/7/5 guy or something -- someone who could contribute in many ways.
Still, I'm going off-topic. The Walt Williams one confuses me the most. He definitely filled it up, but I have trouble believing we are signing a guy who has the potential to drop 27 a year, no matter how long he stays in school. It definitely smacks of talking him up, and as you alluded, it's not as if after talking these kids up and them not fulfilling that we see any sort of accountability -- it's all couched in whatever, rather than admitting they just misevaluated.
So yes, basically I think Deman and Scout, if not the same person, are in cahoots, more or less, and Deman probably uses and embellishes these evaluations.
I am also positive that Deman isn't officially employed by the AD.