Under Coach Bergan and his staff, the Cyclones were competing for trophies in both XC and T&F. Maybe the top talent in the distance ranks were foreign born but looking at the overall program there certainly were plenty of Americans mixed in, some from Iowa that ranged from NCAA champions to All-Americans to point getters in the Big 8 at least on the T&F side. Middle distance, jumps, throws, sprints and hurdles. He had balance and event areas covered. He built a national powerhouse program in Central Iowa, of all places, that could approach and surpass Arkansas on occasion and finish ahead of many other great programs at the time. USC, UCLA etc... He did develop Iowa's best to become major players in those championship track efforts. Maybe Iowa just doesn't produce that many capable of competing at that high of a level in XC on the men's side. The best 18 yr old Iowan couldn't develop fast enough to compete at that level. Nonetheless, it was an era that would be hard to duplicate for IA ST.
The best female Iowans leave the state and have done remarkably well in the past 15 years or so at places like Washington, AZ ST, Missouri, Nebraska etc... Something to be said about not being able to keep your best at a local University not just IA ST. Has to be a good fit, right?
As far as Ihmels and Smith go, they definitely don't look for Iowa HS talent to produce competitive teams on the men's side and barely on the women's under Ihmels but they did have a couple Iowans that excelled. They can't be competitive immediately if they did. Personalities aside, they just can't. I'm sure Iowa HS coaches would love to have their athletes stay close to home but they have to go where they will have the best chance. Putting all of their eggs in the distance basket won't have much chance to compete at a national level in track either. That era is gone. Even Arkansas had a lot of help from amazing jumpers sprinkled with sprinters.