"All the schools that were recruiting me (before the Iowa verbal) are still trying to get me to visit and talk to them," Warfield said.
The 6-foot-1, 185-pound, Class of 2013 safety said Illinois, Michigan State, West Virginia, Indiana, Kentucky, Penn State, Arizona State and others are trying to get him to look their way. Warfield said he's not interested following his official visit to Iowa this weekend.
"I'm pretty set," he said. "This visit just reassured everything."
Scout.com ranks the St. Edward (Lakewood, OH) product as the No. 39 safety in the country for '13. He plays the strong spot in high school.
"(Iowa Secondary Coach Darrell Wilson) said I can play anywhere as a DB, but he says they're going to try to work me at strong safety," Warfield said.
Warfield first saw Iowa in April. He verbally committed to the school in late June. This weekend, he looked deeper into his choice.
"I got to talk to a lot of players this time," Warfield said. "I asked different players a lot of questions. I talked to some of the freshmen to see how they adapted; how it was their freshmen year. I talked to some of the older guys to see how it was over the long run."
Wilson indicated that there's an opportunity for Warfield when he arrives on campus this coming summer.
"He said there's a chance I play as a true freshman," Warfield said. "If they want me to red shirt, I will. It's not a big thing.
"They said if I was good enough to come in and start that I would start right away. They said I definitely would be able to play on special teams."
The Hawkeyes stumbled to a 4-8 record in 2012. It was the first time they were not bowl eligible since 2000 and it opened the door for the competition to pick at their verbal commitments.
"I know Coach (Kirk) Ferentz is a really good coach," Warfield said. "Them losing wasn't a really big deal for me to change my mind. I know they're going to rebound. Our class for 2013 is looking really nice. I think we can pick it back up."
Warfield toured the Tippie Business school on his official visit. He met with counselors and advisors.