Ferd, thank you for being open and direct about the need to at least consider defensive staff changes.  It's easy to see the problem when the defense keeps giving up big plays week after week against even the weakest opponents.  It's a lot less easy to explicitly say the words, for attribution in a public forum, that someone might have to be demoted or even replaced to solve the problem.  There's no question the current defensive coordinator and assistant coaches are good guys who are trying their hardest to help the team win.  But the hard reality in this business is that effort isn't an adequate substitute for results, and right now the results the team needs to be successful aren't there.