Hi, I think the most important thing in business is employees, because you can't do anything without them. The issue of business development is very broad. I'll start with the people who work for you.
To begin with, you need bonus programs, employee motivation will bring the business owner a huge income, motivate employees and not take away from them.
Here is an article about good employee retention https://www.radioactif.com/blog/-quoi-servent-les-primes-de-retention-des-employes-806650.html add employee motivation to it and growth will follow.
We can talk about this topic for hours. So if you are interested in details, what kind of development you are interested in, write...