I don't know who voted he was a bad hire, but either guys like McCarthy, Capers and Lombardi (from the article wils put in that other thread) are flat-out lying to us, or our personnel is not the bad fit for the scheme that so many here are making it out to be.
As far as coverage, if Tomlin can shift the Steelers' 3-4 to man/press, why can't Capers do that in Green Bay?
Obviously, McC isn't going to go into a presser and say "we're switching to a 3-4 even though we don't have the horses for it" - I'm not entirely naive and can see that some of this is a sell job, but I still have to wonder if perhaps we here don't quite know defenses and personnel matching as well as the guys who are paid to do it. I just don't see Capers trying to implement a scheme if he doesn't think the players he's got to work with can play that scheme - it doesn't fit his track record at all.
That aside, lots of folks here are obviously concerned about the current personnel fitting the scheme, so I would assume that would be the reason that someone felt it was a bad hire.