Draftniks vs NFL Teams

[D-Unit]

Usually as the draft nears closer and closer to draft day, you often see meteoric rises of a handful of prospects.

Some people reason that draftniks are slow to the punch. That they are late in acknowledging just how good the player is. You hear stuff like, "NFL teams always valued him as a Top 15 pick, the draftniks are just slow to react."

I'm wondering if that really is the case?

Or is it simply driven by other factors such as smoke screens, fake hype, or real interest by certain teams afraid they can't get that player later (so they boost a player higher up the board), etc?

What do you think? Is there any validity to draftniks being slow to realize the real value of these propsects? Or is it something else?