Sometimes this has to do with technology that they want to launch isn't on time, sales aren't happening as quickly as they thought, or they'll change your job duties. Ask to speak with people you'll be working with at your interview. Find out from them if the job they're doing is the one they signed on for. Ask if they're happy with what they're doing, their likes and dislikes about the company, and remember to ask for specific examples. Find out all you can from them.
Environments vary from company to company.
Know what kind of environment you are looking for. A startup will have a very different feel from a large, established, corporate company. Inc. All Rights Reserved.