Here is a link to a recent USA Today article. I guess in my anti-news bias I clearly hear the digs against missions, instead of a clear message of what good kingdom work is being done.
However, I will agree that all short-term missions require good managment and training. As someone who has gone to the same area repeatedly, I would hate to find you are servicing the same needs over and over again and ignoring others. Or as stated in the article, you are “saving” the same kids many times. So we as stewards need to know the area we are going to, to the best of our ability. We also need to find good organizations which are truly following God and seeking His will and finding all the needs, not just the easy or the greatest reward for us.