Quarles said that Larry Fedora has spoke to Robinette, a 6-foot-3, 180-pound quarterback, "a couple of times," but he wasn't sure if anyone from UNC has made an in-home visit since Fedora's hiring.
"I think [Robinette] is excited about the offense – it sounds like any quarterback's dream," Quarles said. "But, I just don't think he knows [Fedora] yet. That's important to Patton to know who his coaches are going to be."
Quarles also added that who Fedora brings in as his offensive coordinator will have a major impact on Robinette.
"[Robinette] was really close to Coach [John] Shoop and they had a connection," Quarles said.
Further complicating matters is Robinette's early graduation – his last day of school is Thursday – and planned January enrollment.
"The way I understand it, he could wait to decide all the way up until the day before he enrolls in classes," Quarles said. "With the situation the way it is, I don't think it would be a shock if he decides to wait to maybe enroll in the summer. He goes back-and-forth -- he's a kid -- and it's hard for him to decide."
This weekend's official visit to Iowa will be Robinette's second official trip. The only other school he has officially visited is UNC, but he has made several unofficial trips to Vanderbilt and visited Stanford once.
"The Iowa [official visit] kind of came out of nowhere for me," Quarles said. "He was supposed to visit Vanderbilt this weekend officially, even though there's really nothing left for him to see [there].
"Stanford called in and said they're probably going to have a scholarship now, because originally they weren't going to."
For the second consecutive season, Robinette led Maryville to an undefeated season and a Class 6A title.
"We don't go undefeated without him," Quarles said. "We had a strong class back, but Patton was clearly one of the leaders offensively for sure."
Robinette was named the Gatorade State Player of the Year after completing 114-of-160 for 1,522 yards and 22 touchdowns. He also rushed for 886 yards and 16 touchdowns on 97 carries.