Darrell Walker stood near his seat on the bench and shouted directions at his team.
The University of Arkansas at Little Rock head coach had just watched his Trojans go up by 15 points with 4:19 to play, but there was still work to be done.
"Keep defending, guys," Walker said. "Keep defending. Keep defending."
It's been Walker's central, prevailing message -- one uttered incessantly by him and his players -- and it becomes even more important on nights like the one Tuesday, when the offense is struggling and his team isn't quite able to pull away.