I have read fans comments about Hartline's duo role last year. Even some Buckeye articles have mentioned this as the reason we didn't get a National Championship.

Honest question. Are we as fans blaming not winning the title last year because of the split duties of the WR Coach and Offensive Coordinator or because we had a poor offensive line ? Is this the common belief  to be true ? Were there articles or podcast that mentioned insider information that supported the belief that the split duties cost us a championship or is this fan and/or media speculation ? Genuinely curious.