The tried and true is beyond reproach. It's been tried, and of course, it's true. True because it worked.
In times of change, though, most of the tried is in fact, false. False because what used to work, doesn't, at least not any longer.
Sure, it might be what you've always done. But that doesn't make it true, or right, or best. It just means that you already tried it.
The nature of revolutions is that they destroy the perfect and enable the impossible. Seeking out the tried and true is the wrong direction for crazy times.