Is your business running on the revenue from existing customers and clients? If so, it is easy to assume that things are going smoothly. After all, the current clients are working well with you, and there is an excellent professional relationship.
If you are still relying on current customers and clients to sustain your day to day operations, the future for your business could be in danger. At best, you keep providing services to existing clients and keep earning the same revenue, leaving your business stagnant.
The worst-case scenario, however, is that your company is unable to keep up with the competition. Your current clients would eventually move on to better service or product providers, and your business surely will draw the short end of the stick.