There are moving companies that always send the number of movers they feel will be efficient for the job. You will be notified of the number of movers your move will require after submitting your moving details. Under-staffing a move will only consume more of your time and money.
It will take a smaller team of movers to complete a move even though it comes cheap. It is generally known that if the number of movers on a job is not enough, the crew might rush the job and develop fatigue; hence, increasing the chances of damage or injury.