This may be a good thing to be when the quality of the work has no significant impact on something of importance. For instance, the successful operation and marketing of your organisation or not having your home flood or burn because you thought you could handle the plumbing or electrical works!
Do not be "penny wise and pound foolish". Sure, cut costs and save money where you can - but respect specialized knowledge and training. There are very good reasons why training and educational institutions offer courses covering months, and even years in particular fields - and why people invest months/years of time and money to learn.
Be honest about, and aware of the competencies you possess, and leverage them in selecting and developing the business you have chosen to be in. Likewise, do the same for your limitations. So you could sketch well as a youngster, but recognize that when you need to design a home or office, you will need to invest in hiring an architect. Doing your accounts yourself (even though you haven't done it since high school!) may save money in the short run, but after a visit from the government tax auditors, your business may very well go bankrupt. There is a big difference between producing or selling a product/service and identifying and exploiting market opportunities, so secure the help your business needs to develop and grow.
Remember there are factors critical for the success of your business, based on the strategy you have chosen to move it forward, and you must periodically evaluate them and the underlying assumptions of the strategy, and re-adjust as necessary. If you are a "Jack of All Trades" in your business, you will find it difficult to focus on the strategic issues. View the technical support you will need as an investment to allow you to grow your business in a sustainable manner. So, are you a "Jack of All Trades"?
