I have never been particularly high on Tyler Hansbrough's NBA potential. At best, I saw him as an "energy" guy, off the bench. The next coming of Paul Millsap, if he's lucky. That's not a terrible role, by the way -- see Millsap's pending fat new contract. And, if Shane Battier and the new world of statistics in the NBA are any indicator, seemingly weak "glue guys" can be very valuable.
Then you read about this workout he had for the Hawks, which left the Hawks glowing -- or, at least, saying they were glowing. You have to take this with a grain -- if a team that likes Hansbrough is picking behind Atlanta and thinks the Hawks might take him, they might be willing/forced to deal for the ability to get him earlier. I don't think anyone likes Psycho-T THAT much...
More than that, I have really not particularly liked the comparisons between Tyler Hansbrough and Tim Tebow, although -- sigh -- they are kind of appropriate. And if I keep saying that Tim Tebow will have a perfectly fine NFL career based on his absurdly strong work ethic (plus his physical tools), why shouldn't I be willing to say the same thing about Hansbrough?
Again: I think Hansbrough WILL have a fine NBA career -- perhaps not a star, but a decade in the league. He is more Millsap than Madsen, though nowhere near Carlos Boozer.
Worth a Top 10 pick? I guess it depends on your needs. Atlanta has a terrific starting post player in Al Horford -- but what playoff aspirant can't use a little energy and rebounding off the bench?