Challenge: Staying ahead of competitors.
The real challenge: staying interested in what's basically an overblown cable movie.
Brailsford himself always used to say that getting to the top is one challenge, staying there is harder.
The secretary of state, John Kerry, who deeply understands this challenge, stayed in Paris, rounding up support and ironing out differences.
Luís Fabiano has a symbiotic understanding with Kaká, and after the latter's deft pass, Luís Fabiano powered his way through the goalkeeper's challenge, stayed on his feet and scored.
"Senator Hagel believes in engagement, but he is not soft on Iran," the official added, after Mr. Hagel had met with the current defense secretary, Leon E. Panetta, who has had his own challenges staying on the administration's message on Iran.
That runaway court's order to start counting was promptly, and rightly, obeyed -- until a majority of the highest court, recognizing its deference had been misplaced and its authority was being challenged, stayed the counting fingers.
Do you ever have challenges staying engaged with your "life-learning lessons"?
Refugees, homeless people, disaster victims, migrants, all these people often face the same basic challenges: staying warm, staying cool, avoiding hunger, thirst, illness and injury.
This is Systrom's challenge, to stay on the right side of that equation.
