Agree to an extent. However, where ever a coach has the best connections will likely be where they find the most talent. I don't pretend to know the inner workings of college football recruiting but I do think it is fun to follow.... I don't think it is a coincidence that since 2002 we have gotten 10 kids out of the state of Ohio.... all of them under Campbell with at least 2 kids from that state in each of the his first 4 classes (2016 - 2019). In addition, Gene Chizik (former TX d-coordinator, from FL where he started as a HS coach) had the highest average number of players from FL/TX (12.5/class) of any coach looking at the recruiting data from 2002 - 2019.
In the end, Campbell is getting kids from all over (Purdy AZ, Bailey FL, etc.). But he is absolutely focusing on getting kids from b10 territory (where he is connected) and within driving distance of Ames. The kids close to you are always key for long term success. Our ability to recruit the "8 hr" radius around Ames is an indicator of sustainable success. But this will likely always need to be augmented by recruits from other parts of the country. There will likely be bias for where ever the staff has connections.
Under Campbell, the Midwest has bounced back (48% of recruits) with a significant reduction in recruits from the South (32% of recruits). This compares well to McCarney's last 5 years (48% Midwest, 37% South) and is a significant difference compared to Rhoads (28% Midwest, 55% South) and Chizik (34% Midwest, 58% South).
(Data pulled from 247sports, added region groups)