Filter an Option Set

Hi!!!

Is it possible to filter an option set based on the value select in a lookup?

I have a lookup with 9 different teams, I also have an option set with different tasks that those teams are in charge to do.

But I want that every time that somebody chooses a different team, the options set shows just the tasks related with the team they choose.

Is that possible?  

I'm learning CRM not very sure how to do something like that!!

THANKS!