The receiver/defensive back from Gilbert, Ariz., just needs to get noticed.
McMillian, who goes by Isaiah, is in Colorado this week, taking unofficial visits to Colorado, Colorado State and Northern Colorado. He participated in a CSU camp on Thursday before visiting CU for a second straight afternoon.
Although the two-star recruit has no scholarship offers, he's spent this year visiting several schools, including BYU, Utah, Arizona, Arizona State, UCLA, USC and SMU.
"It's just getting my face out there and getting as much experience as I can," he said.
McMillian's father, Mark, played cornerback at Alabama before an eight-year NFL career (1992-99) with the Philadelphia Eagles, New Orleans Saints, Kansas City Chiefs, San Francisco 49ers and Washington Redskins.
The younger McMillian has played only three years of football and is still raw, but said his father his helping him progress.
"I just started playing football my freshman year, so I'm still new to all of this," he said. "Going to 7-on-7s and combines and camps and just getting experience against guys that are better than what I'm used to in Arizona. I'm just preparing myself for really anything that comes my way.
At Williams Field High School last season, McMillian was part of a 14-0 team that won a state title, but caught just one pass for 5 yards as he played behind two 1,000-yard receivers: Max Fine (now at CSU-Pueblo) and Justis Stokes (Northern Arizona).
McMillian hopes this can his year to shine and that it'll lead to an opportunity in college.
"The first three games I just have to come out of the gates hot," he said. "I have to show what I can do.
"We won state last year, so my goal this year is to go back to back at state and leave senior year as a champion."
Contact staff writer Brian Howell at firstname.lastname@example.org or twitter.com/BrianHowell33.