There is a big difference between attacking the man and criticizing his work, and Etcheverry has left himself very much open to having his body of work criticized. Agreed that stats can be twisted, but no matter how you look at it, the Bomber defence collapsed for the same reasons that Etcheverry's defences have collapsed in the past.
The surest way to prove that you understand the current situation is to be able to predict the future of that situation, and many here predicted exactly how Etcheverry's defence would unravel over the course of the season. Complaining that we just didn't have the right kind of people on defence doesn't cut it- it would be little short of insane thinking to keep on trying to do the same thing when it isn't working for whatever reason. If a manager cannot adapt his/her strategy to take into account the people he/she actually has as opposed to those wished for in an ideal universe, then incompetence is at work. A musician who can play only one song doesn't survive (C&W music excepted).