This draft class has been disappointing so far this preseason, but I think it's important to remember the majority of this class was thought of as high level defenders and not necessarily prolific scorers. The majority of these guys were never going to show out on box scores, so you really have to watch them play.
I would also add many of the top picks this year are very young. That was part of their appeal, that they had a lot of upside, but weren't necessarily drafted on even their college production. If these guys weren't dominating at the college level, it's not likely they are going to come in right away and dominate in the NBA.
I think we all have to be patient, but we also have to be prepared for many of these guys to not reach their potential.