This notion that Iowa's juniors and seniors get burned out under Tom and Terry just doesn't hold up. Metcalf was so burned out he won his 2nd NCAA title. Borschel was so burned out he smoked the competition, made one of the greatest comebacks of all time in the semis, and dominated Mack Lewnes in the finals, who hadn't given up a takedown all year. Burak is so burned out he's about twice the size he was as a freshman and keeps getting stronger and better every year, on course to becoming a 3x AA and a likely high AA this year. Gilman and Clark are so burned out they're going to threaten to win Big Ten and NCAA championships this year.
You could go on and on about guys who have done great later in their careers under the Brands brothers. Furthermore, Iowa haters (and some Iowa fans, sadly) can rip on them all they want, call them monkeys, or whatever, but these guys aren't stupid. If there were compelling evidence that they were over-training their guys, they'd try a different approach. They're in this thing to win championships. They're not going to keep doing things that are working against that goal.
IMO, this over-training baloney is nothing but a smokescreen thrown up by Iowa haters, some Iowa fans who consider themselves knowledgeable but have no clue, and probably rival coaches who want to throw anything negative about Iowa at the wall and see if it sticks.
And yes, some guys haven't developed as we would have hoped, but to blame this solely on burnout due to over-training is ridiculous. There are any number of factors that go into guys not developing as they would have liked. It happens in every program. I think that, these days, we're recruiting a brand of kid who's hungry and chomping at the bit to tear it up on the mat for the Hawks. I like what I see in these youngsters coming up. I think attitude is a major factor in development and the occurrence or avoidance of burnout. Of course, there are no guarantees, and some may not pan out as they hope they will, but I have a good feeling.