What does the expression "we are looking to you" mean in the following sentence?
Now that you have taken the test and have an understanding, we are looking to you to teach this to your subordinates.
It means "we are expecting you" or "we have selected you".
Vague wording of this sort is sometimes used in an attempt to be less blunt (i.e to appear more polite) - as if they are merely hoping that you will be happy to volunteer your services.
Imagine a group of people standing in a circle, the leader asks "who can we get to teach the subordinates?" then she stares directly at you and waits in silence. The leader is looking to[wards] you.
The Phrasal Verb "look to + someone" means:
Examples from Merriam-Webster include