Premise:
"The various staffing and sourcing strategies provide leading organizations with dynamic workforces that can quickly carry out these functions to meet changing business needs."
Hypothesis: Dynamic workforces can carry out these functions; they couldn't previously.

it is not possible to tell

Premise:
"frequent flyer miles for this unit's employees has become more problematic since the government contracted with a different carrier for one of the unit's most heavily traveled routes."
Hypothesis: The government has been unable to contract with any carriers.

no

Premise:
"Russert offered the clip as an omen of the curse that would strike John Kennedy 30 years later."
Hypothesis: Russert was sure the Kennedy curse existed.
it is not possible to tell