Most of us understand that innovation is enormously important. It's the only insurance against irrelevance. It's the only guarantee of long-term customer loyalty. It's the only strategy for out-performing a dismal economy.
Resilience is based on the ability to embrace the extremes—while not becoming an extremist. Most companies don't do paradox very well.
There's no such thing as "sustaining" leadership; it must be reinvented again and again.