The reality hit Nebraska defensive coordinator John Papuchis while he watched his charges run a step behind the UCLA Bruins and miss an alarming number of tackles.
The Cornhuskers have a need for speed.
The Huskers (1-1) are 115th nationally in rushing defense, 96th in total defense and 83rd in scoring defense after their 36-30 road loss to UCLA. They'll go against another spread offense when Arkansas State (1-1) visits Saturday.
Papuchis' most pressing concerns are at linebacker and defensive line.
Freshman David Santos and junior college transfer Zaire Anderson have been practicing with the No. 1 defense this week, and one of them could bump weakside linebacker Alonzo Whaley from the starting lineup.
Whaley struggled with positioning and tackling against the Bruins, who amassed 653 yards -- the second-most ever by a Nebraska opponent.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or email@example.com.