Ruzious wrote:Pif, Wood was a rare case....
Look at it a little differently. Wood was an extreme example of a process that goes on constantly, in which guys are significantly  under-valued. 
Moreover, once a guy is under-valued, that quite often leads to him being under-valued again -- i.e. it's a self-reinforcing process. Overall, the more you are able to crack this process & take advantage of mistakes of this kind, the better a team you can build. 
It's not always as extreme as with Wood, but opportunities to profit from it are always available. Again, Gafford is an example, so is Melton. 
This seems to be one of Tommy's particularly valuable skills: viz. Bryant, Bertans, Neto, Gafford, Mathews, Gill, Len, Bonga, Wagner.... Go back a little further, & you find Gortat. Along with most of a whole generation of the San Antonio Spurs!
(Of course, the opposite is also in play: guys who are over-valued, & then over-valued again & again. The poster child for that is Austin Rivers: when Ernie acquired him for Gortat, virtually this entire board thought it was a terrific move.) 
Then there are the related pairs: guys who are somehow connected except one of them is way over-rated & the other is way under-rated. I bet you can think of one fairly obvious example of such a pair, Ruz. I sure can.