"They said I could stay in the middle or could move out and develop into a stand-up pass rusher," the 6-foot-3, 225-pound Lakeville (MN) South High product said.
Corcoran returned to Iowa City on Sunday to take part in the program's first prospect camp of the summer.
"I felt I did good at the pass rush against the running backs but I could have done better at pass coverage and my 40," he said. "I ran a 4.83. I'm looking to improve my 40 for my other camps."
Corcoran felt like he left Iowa with positive momentum.
"They brought me and some other top prospects on a tour of the new facility that's under construction. After that, I sat down and talked to Coach (Jim) Reid for a while and he said I have a very high potential to pick up an offer this June," he said.
And that would be just fine with Corcoran, a Scout.com three-star prospect and No. 30-ranked middle linebacker nationally in the 2015 Class.
"I think the Iowa program is great and with the new facility going up it's only going to get better. I talked to Coach Reid for a long time and I'm very impressed with his 43 years of coaching, including some in the NFL," Corcoran said.