It's funny to look back at the initial business plan I wrote 5 months ago, when I first started my consulting business. I had a clear vision of what I wanted to do, how I wanted to do it, WHY I was doing it, and the goals I wanted to reach. It all changed once I dove in and starting experiencing the world of entrepreneurship.
When I first quit my job in corporate marketing, I had very little work lined up. I cold emailed several brand managers trying to get business, and didn't have much luck.
I had to get the bills paid, so I started taking on projects that I wasn't planning on focusing on. As it turned out, I really enjoyed that work and was really good at it, so I continued to take on more projects like that.
Within the first month, my business was evolving.
One service my business provided turned into half a dozen within 3 months. Within 4 months I had so much work that I hired an intern. My business grew rapidly because I didn't let my original vision restrict me. I was doing work I was passionate about, and was making money, that's all that mattered.
Several other companies' visions have changed over time, as well.
For example, Microsoft's original vision statement was "A personal computer in every home running Microsoft software." They achieved that, and didn't stop there. Now they're in the business of selling computers, tablets, phones, and hardware. Their business evolved, as did their vision.
Don't get me wrong- a clear vision is very important in running a successful business. Your vision can help you stay focused, make decisions, and ultimately reach your goals. But when you're starting out, like in my case, you may not know what you're really capable of until you start working towards your initial goals.
Bottom line is this: it's OK to start a business with no clear vision- it'll naturally evolve over time. Just remember to stay true to yourself (i.e. WHY you're doing it), and you'll succeed.