I tend to give a lot of credibility to DraftExpress' assessments compared to other sites. For example, NBADraft.net had LaVine and Kyle Anderson in the lottery for so long that I think they have some kind of connection with UCLA or their agents.
Recently I heard a podcast with Jonathan Givony where he said he's not a fan of Noah Vonleh, that he doesn't have a great feel for the game (so far). Everything I saw on tape backs that opinion. So when I see mocks with the Celtics picking Vonleh, it gets me nervous. Right now, I would prefer Smart (bye bye Rondo) or Gordon (elite defense).