Why is a central authority controlling the market again ? What we need is interfaces for the customer and workers that can be matched together by a broker. It's probably quite hard to find the right interface but it would then benefit everyone.

Here is a simpler example for a Uber-like implementation:

* Taxis would be advertising their current position and whenever they they are free or not with their phone.

* Potential customers would advertise their current location and where they want to go with their phone.

* Broker services would match taxis with customers

Obviously it's more complicated than that, there could be a reputation service associated to an account for example and your own algorithm running on your phone that chooses the combination of trust and pricing that you want.