I don't want to put words into Don's mouth, as this may not be what he meant. To me diversity in coaching isn't necessarily who they are or where they came from(from just the name of the school), but rather what they can show/teach in regards to technique, what they can offer in regards to a tough workout partner, what different types of physical training they can offer for conditioning etc.
Whenever I see a kid win a state title as a freshman, especially in a dominant fashion, I always wonder how many coaches had their fingers in that title. Meaning, that kid didn't learn all that it took to get there from one coach, or even one coaching staff, but rather all of the clinics, coaches, camps that he went to over the years. I first started thinking that way when I was coaching high school and saw McGinness win the first of his four, in a manner that was quite amazing to me.
And while this whole staff is from Iowa, they wrestled under different staffs, and different eras, but also(at least with Metcalf and Zadick) with extensive international wrestling under countless coaches and learning technique from all over the world.
So after getting long winded, I can see the benefit in having diversity based on where the coaches come from if that difference allows them to brings different coaching skills to the table, but in this case, even though they are all from Iowa, they still bring coaching diversity to the mat, no doubt.
