I'm no fan of DA, but he is miles ahead of Ditka as a head coach. And, from an organization perspective, there is no comparison between Loomis and Kuharich.
Ditka, in hindsight even during his success as Bears head coach, really was just a figurehead. He benefited from his tough guy persona and player reputation days in Chicago. The real brains behind his success there was Buddy Ryan. DA knows defense and knows how to coach that side of the ball. No comparison. The problem with DA is he is not a good head coach and hasn't acknowledged the deficiencies with PC.