''You are unable to recruit the amount of staff that you require?''
If Boohoo can't employ the amount of staff they need they will be limited in labour. Therefor the people Boohoo have already employed will need to work overtime to ensure they are getting what they need done.This could cause stress for the employees and they could begin to dislike their job, leading them to quit and the numbers decreasing more.
Depending on the part of the business there is a lack of workers it could cause services to become slower. For example, isf there is a lack of delivery staff the chances are the time it takes for the item to get to the customer will be prolonged and the customer will become unhappy. Potentially causing Boohoo to lose out on custom them in the future.