If someone "works around the clock," what are they doing?

They are working all day and night without stopping

What does the idiom "to be on the same page" mean?

Having a mutual understanding or agreement

If someone "climbs the corporate ladder," what are they doing?

They like taking the stairs instead of the elevator 

They are advancing in their career and taking on more responsibilities

If someone "wears many hats" at work, what are they doing?

They take on various roles or responsibilities in their job

If someone "pulls strings" at work, what are they doing?

Using their influence or connections to achieve a goal