When NBA early entrees and transfers diminished their front-line depth, both North Carolina and Kentucky contacted Jack, who then began eying attending college his fall.
"The attention they gave surprised me, so I decided to open up my recruitment," Jack said.
Jack said he admired and respected the way the Tar Heel coaching staff handled their sudden interest in him.
"They told me what it was from the beginning," he said. "They were about business and very straight-forward. They told me that they wanted guys to come in and play right away and be aggressive."
Shortly thereafter Jack decided to return to his original plan.
"I realized, though, that I made a decision and I needed to stick to it, that I was going to prep school for a reason."
In the fall, Jack will be attending South Kent (Conn.) School.
"I want to develop my skill level and not just rely on my athleticism," he said. "It's close to the city and I can go back and get some workouts. But, it's also far away from the city where I can just focus on my game. I believe that if I go to prep school for a year, I just should come back better at everything."
The UNC staff told Jack they'd continue to evaluate him during the summer.
"They said ‘We'll see from here,'" he explained. "A lot of schools have come into my recruitment, so its just go through the summer, have a good summer and we'll see from here. "
Jack named Kansas, West Virginia, Syracuse, Kentucky, Georgetown and Connecticut as also showing interest.
Jack, who is ranked the No. 8 power forward in the class of 2010 (and will now be reclassified to 2011), said he'd like to make a final decision during the early signing period.
"I don't want to go through what I went through this year with the whole up-and-down," he said.
The brief courtship with UNC did help him become friends with a couple of current Tar Heels.
"I talked to John Henson and Kendall Marshall," Jack said. "They just told me to keep working hard and just have a great year."