Business models like Uber are replacing middle management with software.
This is leading, first of all, to a situation where humans are being told what to do by machines (an API). As techniques like machine learning become more and more prevalent, the decision-making as to what humans to dispatch and for which tasks will be made more and more by machines. This is why making sure our artificial intelligence is safe is exceedingly important in the mid-term future.
Secondly, when their workforce is already being controlled by an API, companies have the latitude to move that labor also to machines, making human jobs obsolete. This will also be a big topic in the near to mid future, as robots start to prepare our food, drive our cars, and even greet our hotel guests.