A recent Wall Street Journal article talked about the increase in "Superjobs."
These are jobs in which the worker is doing the work of two people due to downsizing or a jump in business (more often the former), or a recognition by management that the worker has useful skills in areas other than those noted in the job description.
One example was a restaurant owner asking a dessert chef to tile the kitchen because he had great tiling skills.
The article noted a wide range of positive and negative issues about Superjobs. They ranged from a worker having an opportunity to grow strengths that could be used in other areas to cognitive exhaustion due to having to think about lots of different things at the same time.
My take on Superjobs is that if you have an opportunity to grow and exercise new skills, take on different responsibilities, and s-t-r-e-t-c-h in the workplace it's a good thing.
One key issue, though, is to keep communicating with your boss about how you think you're doing. If you get to the point at which you see your work quality deteriorating because you've been asked to take on too much you need to say something.
Where could you stretch today?