“You don’t have to just get old and crawl in a hole somewhere.”Longevity isn’t just a word to Kirk Ferentz; it’s a lifestyle. Inside the measures college football’s longest-tenured coach has taken to keep his mind & body fresh entering Year 21 at Iowa. https://t.co/QZGnFouXH8— Chad Leistikow (@ChadLeistikow) June 13, 2019Last year, in his 20th season at Iowa, Ferentz led the Hawkeyes to a 9-4 record that included an Outback Bowl upset over Mississippi State.Ferentz is the winningest coach in team history with a 152-101 record at Iowa, and has led the team to four top-10 finishes and two Big Ten championships.He has had only three losing seasons as head coach of Iowa, and only one since 2001.[Des Moines Register] CHAMPAIGN, IL – NOVEMBER 19: Head coach Kirk Ferentz of the Iowa Hawkeyes is seen during the game against the Illinois Fighting Illini at Memorial Stadium on November 19, 2016 in Champaign, Illinois. (Photo by Michael Hickey/Getty Images)At 63 years of age, Iowa head coach Kirk Ferentz still has plenty more football coaching left in him. But he does appear to have an idea in mind for what to do after his time with the team is over.In an interview with the Des Moines Register, Ferentz stated that he doesn’t plan to stop coaching, even after he eventually steps away as head coach someday. He revealed that he would likely continue working as a position coach, even on a volunteer basis if necessary.“Absolutely. That’s been the most fun I ever had, being an assistant coach,” he says. “That’s just pure teaching. That’s the essence of teaching, and it’s more hands-on than what I get to experience.”Ferentz does have significant experience as an assistant that just about any program would find mouth-watering. From 1993 to 1995, he was the offensive line coach under Bill Belichick at the Cleveland Browns. He stayed with the team in the same role when they became the Baltimore Ravens until he was hired by Iowa.Ferentz was also a former offensive line coach at Iowa in the 1980s before taking up his first head coaching job with Maine.