Down 20-6 in the fourth quarter, Notre Dame was going to need some big plays and a little luck to stay undefeated and keep its national title hopes alive. It got just enough of both. Everett Golson scored on a quarterback sneak in the third overtime and the Fighting Irish (No. 3 BCS, No. 4 AP) came back from a 14-point deficit Saturday to beat Pittsburgh 29-26.