The team conducted a practice in shells Thursday.
"They've been really focused," Barnett said.
"We experimented with a few things today," he added, perhaps planting a seed of interest in Miami coaches' minds, should they be paying attention.
Colorado travels to play the Hurricanes Sept. 24. Miami, who lost its opening game to ACC rival Florida State, plays Clemson Saturday. Barnett said he encouraged his players to watch Saturday's Miami-Clemson game, but if it's only available locally on ESPN Game Plan, Barnett knew many wouldn't see it.
"It's a chance to gain even more respect and understanding of what they do," he said.
Asked if he thought Miami quarterback Kyle Wright, who struggled vs. FSU, would be improved against Clemson, Barnett said yes.
"He's a really good player," Barnett said. "We saw him in high school. And you'll see a completely different offensive line, from the standpoint of their performance. You'll see what Miami's made of Saturday."
Barnett expects Miami to do whatever it takes to beat the Tigers and not hold any of its playbook back for the Buffaloes.
"This is another ACC game for them," he said. "They've had a week-and-a-half, two weeks to prepare for it, so you know you're going see everything they've got, because they've got to win this game."
As for the Colorado coaching staff, they don't have the next few days off. They'll spend it scouting high school talent, which is one reason Barnett wanted no practice Friday.
"We could see games that way," he said. "This is a good weekend for high school football in the state, there are a lot of games, so we can go out Friday and Saturday."
Iwuh Thinks He'll Be 100 Percent Next Week
Senior buff linebacker Brian Iwuh went about half the practice Thursday, participating in individual drills and 7-on-7 work. Though Iwuh has been running on the sidelines this week, Thursday was his first day back in pads with the team since he had his knee scoped Sept. 6.
Iwuh hurt his knee in the first half of the season-opening win over Colorado State. It was Iwuh's first-ever knee injury.
He said Thursday the knee feels good.
"It didn't bother me or anything," Iwuh said. "It felt the best today that it's felt.
"The way it's feeling now, if everything goes well, I'll be back (full speed next week). I could've done a whole lot more today, but they were wanting me to be safe. But I think I'll be 100 percent next week."
The Buffs played mostly with two linebackers and five defensive backs vs. New Mexico State because the Aggies pass the ball so much. But they are expected to return to their regular 4-3 alignment against the Hurricanes. With the Miami game on the horizon, Iwuh is extra motivated to get back on the field and into his starting position.
"I'm really looking forward to it," he said. "It's one of those games you wouldn't miss for anything. Growing up, that's all you hear about is them and Florida State. I love playing in these types of games."
Colorado has been watching film of the Miami team. Asked what's stood out to him about the Hurricanes, Iwuh echoed what most of his teammates are saying, as well.
"They're fast, they're fast, they're fast," he repeated.
Another Buffalo on board
Colorado football director of operations David Hansburg's wife, Holly, had a baby daughter Thursday. Her name is Quincy Blair Hansburg. It's the third child for the Hansburgs.