Answer: The cafe is small enough in size that it can be maintained as a flat organization without a middle manager.
Step-by-step explanation:
One needs to put into consideration that the said restaurant is new which means, they have low customer retention as of now, funds is not really flowing as the restaurant is still trying to gain grounds in the area, the business is basically just getting to the ears of some people. I would suggest Rick monitors the restaurant's activities himself for now and gain practical understanding and technical approach on how to effectively manage the business.
When he has established certain standards, increase customer base, extensive orders rising, etc., then he can find a suitable manager to help run the affairs as there would be money to pay that said manager while gross profits keep rising.