(The Independent) with NBC analyst Joshua Perry who played for Chris Ash on Ohio State's 2014 NC team. Perry's main point seems to be that ND's defensive woes are the result of the inability to get pressure on the QB. I've linked to where he answers the question of his early impressions of the Ash era/experiment at ND.
Link: https://www.youtube.com/watch?v=XTb0v2zWmaM&t=1793s