hand (something) to (someone) on a silver platter
to give a person something that has not been earned
The father handed a job to his son on a silver platter and the boy never made any effort at all.
Things Successful Teachers Do Differently
Interestingly, this wasnt as significant as subject knowledge and classroom instruction as a factor contributing to teacher success. But classroom management including how well a teacher makes use of lesson time, coordinates classroom resources and manages the behaviour of students was noted as important.