By Andrew Holleran Duke head coach Mike Krzyzewski is set to coach in either the last or second to last game of his college basketball career on Saturday night. Coach K and the No. 2 seeded Blue Devils are set to take on longtime rival North Carolina, a No. 8 seed, in a national semifinal game at the Final Four in New Orleans. With a win, Coach K and Duke will be off to the national championship game. With a loss, the Blue Devils will be going home – and Coach K’s career will be over. The Tar Heels have already ended Coach K’s Cameron Indoor Stadium career on a sour note. UNC upset Duke on the…