First off, from my perspective I don't care exactly what the problem is. The fact is that we are in year 6 and the HC is responsible recruiting, development, and x's and o's. There clearly IS a problem.
That said, IMHO right now it is an x's and o's problem. The Buckeyes, have a considerable amount of talent but right now, as I see it, they are five talented guys who coincidentally wore matching outfits and they are consistently losing to TEAMS made up of less, and sometimes considerably less talented individual players. As I said upthread, the whole is less than the sum of the parts.