Growth is the objective of every business. If you're not growing, it is likely that the business will shrink as you lose one client too many, or you encounter some problem that costs more than initially forecast.
For most businesses, growth is about acquiring more clients into the funnel through marketing, or increased sales activity. This will indeed increase the number of new clients, but is your organisation set up to deal with the increased business? Is your execution capability ready to support them? By growing in this way, will you do more damage to your business by putting it at risk?