Made a deep dive into Buzzy and he's a KC guy who was a mentor for Marvin Clark and coached for MoKan Elite.
https://www.chronicle.com/interactives/marvinclark (This was a good article and even mentions him watching us beat Indiana on a recruiting trip)
In a nutshell among the teams that recruited Clark out of high school was Iowa St with Hoiberg/Matt A.
When Clark transferred, he transferred to St Johns and Matt A.
Seems like a hire based on him being able to develop guys and tap into AAU around the St Louis/KC area.