You're judging different situations. Just because a guy was fired after one season as the DC (even though he was actually with the Eagles, studying under Jim Johnson for 11 years) doesn't mean that he was a terrible DC. He was scapegoated, for not being Jim Johnson (anyone in that situation would've been fired, most likely).
However, you have Rivera who was fired after two seasons in Chicago, went to have a very good defense in San Diego. However, that style defense and this style defense were completely different. Most notably, Rivera's San Diego defense was a pass-rushing, 34 defense, much like the one they still are using. McDermott's defense being a more pulled back, front four pass rushing (though, admittedly, the Eagles blitzed more while McD was there) that you are seeing today.
Also, you've obviously not been to a Panthers' training camp/practice, or else you would see who's coaching the defense up. Rivera is doing his Head Coach duties, which is respectable, but McDermott is the one fired up, screaming at the defensive players, telling them when and where to be.
Sorry you think my post was "uninformed". Maybe next time you should use that term a little less loosely.
LoL, you are thinking more now but still funny.
Yeah, what we see during gamedays and practices are completely how teams are coached and nothing ever happens the other 6 days a week, they don't have game plan meetings with coaches and players, Rivera never gives his input on what he thinks about that weeks game plan.
Rivera was let go by the Bears because they were tired of having him go through the Head Coach search rounds every offseason always wondering when they were going to have to replace him.
(Remember how long we were wondering if we were going to have to replace Chud this year?)
You can argue McDermontt is the better defensive coach all you want, but it ain't gonna make me think it isn't funny as hell.