LINCOLN, NE – SEPTEMBER 23: Flag members of the Nebraska Cornhuskers perform before the game against the Rutgers Scarlet Knights at Memorial Stadium on September 23, 2017 in Lincoln, Nebraska. (Photo by Steven Branscombe/Getty Images)Nebraska is in trouble in the second game of the Scott Frost era. The Huskers, who fell in the season opener to Colorado, are struggling in a major way against Troy this afternoon.Troy is leading, 17-7, at halftime. The Huskers have been without freshman starting quarterback Adrian Martinez. Nebraska’s offense has had major issues both securing the football and moving it down the field.Can the Huskers pull off a second half comeback?ESPN’s Football Power Index has made its prediction.The FPI is confident that Troy will be able to hold on in the second half. It gives the Trojans a better than 50 percent of doing so.ESPN’s FPI gives Troy a 62.0 percent chance to win the game.Nebraska and Troy are playing on BTN. The second half should be starting momentarily.Can the Huskers pull off the comeback?