I'd be willing to bet it's that Nagy guy, or someone from the Chiefs. Reading between the lines, the fact that a defense-oriented rookie head coach has already hired an o-line coach (Castillo) means they likely have an agreement in place with someone. We'll just have to wait until after KC's annual one-and-done chokefest in the playoffs this Sunday.
Assuming this is right, can anyone in the know shed some light on this guy?