Since he is an offensive "coach" he should have a clue what a real defense looks like. He should have input and be concerned about what "his" defense can or can't do. As head coach he has the final say as to which direction the defense is going. That's the part I don't understand. The fact that he appears to be hands off and rely on his defensive coaches and coordinator and seems to be clueless about the defense. Again, as an offensive coordinator first, he should know a few things about defense.
The thing that worries me most...is his answer about any possible coaching changes in his Monday presser today. When asked about possible coaches being on the hot seat or of a possible defensive coordinator change he responded with an EMPHATIC "NO". That concerns me. Unless he knows something that us fans are not seeing on the field and knows that it's not the DC's fault for fielding out of position players, then I'm really concerned with his philosophy. He and Buddy have both said they will do whatever is best for this football team. In my opinion (which also coincides with a lot of insightful and knowledgeable posters on this board), there is a problem with the coaching and design of schemes that the current defensive coordinator is using.
I know Edwards was picked by Chan, but if it's not working, move on. This was Chan's mantra about talent, if it applies to players it should also apply to coaches. Success is usually hindered by stubbornness. I really hope that after this season Chan is not stubborn.