1) In over my head
-The two broke girls are in over their head trying to run a cupcake shop since they are not business savvy
-Some say that Harding was in over his head as a president
-Don't go to the deep end of the pull, you will be in over your head
Definition: having more difficulties than one can manage
2) Goes with the territory
-Going to canvass for votes for Obama in a republican town is hard, it goes with the territory
-If you are a goalkeeper, you need to expect hand injuries, it comes with the territory
-Sarah Palin should not be shocked the media publicized her daughters pregnancy, it goes with the territory of running for public office.
Definition: to be expected under circumstances like this.
Etymology: Alludes to the details and difficulties attendant to something like the assignment of a specific sales territory to a salesperson. When one accepts the assignment, one accepts the problem
3) Stop-gap
-The team signed the old striker as a stop-gap measure while they pursued another young hot-shot
-The government forced reading as a stop-gap measure to improve literacy
-Sometimes stop-gap employees become full-time employees who rise to the top
Definition: That which closes or fills up an opening or gap; hence, a temporary expedient.