By Andrew Holleran An old video of Coach K lecturing a college basketball player in the postgame handshake line is trending following Saturday night’s game. Saturday night, North Carolina upset Duke in Coach K’s final home game at Cameron Indoor Stadium. Following the game, Duke’s assistant coaches appeared to snub North Carolina head coach Hubert Davis in the postgame handshake line. Following the postgame handshake snub, an old video of Coach K lecturing then-Oregon star Dillon Brooks after an NCAA Tournament game went viral. Krzyzewski: “You’re too good of a player to do that.”Brooks: “I’m …