The question's so obvious, it's the first one anybody asks. Did the Panthers clean house on defense in order to make themselves more appealing to Julius Peppers?
If they did, they'd be the most shallow organization in the NFL, to the point of being despicable.
Keep in mind, all four of the defensive coaches who have split did so of their own volition, not some threat from above.
But even if the Panthers were thinking in that direction, it's a horrible idea. For his $17 million next season, they might as well ask him to call plays too, if that's the way they're going.
The only one such a move would be good for is Lee Iacocca, because the K-car would no longer be the worst idea of the last 50 years.