In the latest RPI, Oklahoma is no. 3 in the nation. Losing to OU on the road without your best and most athletic player (Vic Law) is not a shock.
NU has struggled mightily this year, but if this year's schedule is much tougher. Last year, NU lost to Butler and Creighton similar to the early season losses this year to Creighton and Texas Tech. They played their ACC Challenge game at home last year and squeaked by Wake Forest. If they played Wake on the road, I think they lose that game. They also swapped the game v. Texas with the game at Norman v. Oklahoma which is now a top 5-10 team. Texas did not make the tourney or the NIT.
As for NU's team this season, they are 10-5 and 1-1 in the conference with 16 games left. If they somehow can get it together and go 10-6 in the remaining conference games and win 1 or 2 games in the BTT, they are right in the thick of things with 21-23 wins. They need to start out well on Tuesday v. UNL and Friday night at PSU. Hopefully, McIntosh is healthy enough to start and play.