Duke head coach Mike Krzyzewski, right, and assistant coach Chris Collins, left, direct their team against Wake Forest during the second half of an NCAA college basketball game in Winston-Salem, N.C., Wednesday, Jan. 30, 2013. Duke won 75-70. (AP Photo/Chuck Burton)

Duke coach Mike Krzyzewski argues a call during the first half of an NCAA college basketball game against Wake Forest in Winston-Salem, N.C., Wednesday, Jan. 30, 2013. (AP Photo/Chuck Burton)