Use this link to read the full article from Investopedia featuring comments by Michael Alexenko, CFA

http://www.investopedia.com/articles/professionals/091015/why-goalsbased-investing-might-be-right-you.asp

 “If you don’t put your plan in writing and you’re not specific about your financial objectives you’ll be more likely to make ad-hoc decisions,” according to Michael Alexenko, chartered financial analyst (CFA) of Royal Asset Managers.The ad-hoc decisions Alexenko mentions might make sense in the moment though they can have a disastrous impact on a portfolio in the long-term. Think of the goal-based approach as a means to ground your investing, so you're driven to accomplish the specific goals you have in place. (For more, see: Your 401(k): How to Handle Market Volatility.)