Indeed...as I noted earlier, many of the same people yelling at Bergevin for not making the Big Move for a scoring forward simultaneously reject the idea of acquiring Phil Kessel (!), because his cap hit is massive and he has holes in his game, and because the speculated returns seem too high.
So to sum up: MB is being commanded to acquire an elite offensive forward who is also responsible defensively, has excellent character, and a modest cap hit, in return for spare parts; and any failure to do this is a sign of obvious incompetence or a lack of a will to win. That's not 'armchair GMing.' That's la-la land.
At least JVD had the coherence to say he would trade Subban to get that elusive impact C. I think that's madness, but at least it shows an awareness that, barring freak events, all-stars don't just drop into your lap for free.