If you manage an office, a medical practice, a warehouse, or a retail space, you know the feeling: the cleaning was great at first, then it slowly slipped. The trash gets missed. The restrooms stop getting restocked. You call, nobody calls back. One day you realize you're managing the cleaning company instead of your business. Businesses rarely switch cleaning companies over one bad night. They switch over a pattern. Here are the reasons we hear most often — and what to look