If we had done this review a year ago, Chris Breen probably would have placed a lot higher on the list. A free agent signing out of the OHL, the towering 6'7" defender became a favorite of then coach Jim Playfair. The big guy was a top-two defender for the Heat under Playfair and was consistently singled out by the bench boss as a kid who was close to make the jump to the big league.
I was always pretty suspicious of those claims myself. Despite being a huge defender (who wasn't merely a goon) Breen was somehow unsigned and undrafted coming out of his junior career. A guy with that sort of size has to have a least one significant fault for scouts to ignore him so completely.