Thursday included possible concussions for two defensive players, senior end Wayne Dorsey and redshirt freshman defensive tackle Carlton Martin.
Practice ended early for both, and they will be evaluated before returning to contact.
"It was a real physical practice," Nutt said. "Each day you want to put down another brick for another day of work, but sometimes it's like we're running in mud."
Nutt said there were too many balls on the ground, too many false starts to get very excited about Thursday's work, but he did see improvement in his quarterbacks.
Randall Mackey and transfers Barry Brunetti and Zack Stoudt took most of the reps.
Nutt singled out the play of wide receiver Ja-Mes Logan but said he'd like to see greater consistency from the receivers overall.
Logan's day included a 30-yard touchdown catch on a crossing pattern from Mackey and another deep catch from Mackey down to the 10-yard line as practice closed with the 2-minute drill for the second time this week.
Brunetti also had a nice touchdown pass, scrambling to keep a play alive and finding redshirt freshman Vincent Sanders in the corner of the end zone.
Sanders had a chance for another big gain but dropped a deep pass from Stoudt in the 2-minute drill.
"Ja-Mes Logan did a good job of catching the ball, but we've got to be more consistent overall," Nutt said. "We've got to have some guys really step up and catch the ball for us."
Contact Parrish Alford at 678-1600 or firstname.lastname@example.org.