"Conventional wisdom pegs [New York Knicks point guard Jeremy] Lin’s recent success as inexplicable. He was undrafted, has been released by two other teams, is rail skinny and before this week, he’d been considered a novelty who many assumed survived with only a Harvard-educated basketball I.Q. But here’s the unusual twist in Lin’s story: His success has little to do with smarts. He is, according to players, virtually unguardable."