We are seeing a number of market enthusiast coming up with trading strategies that work. Most don't have the staying power to get them to work enought to trade. Some do. Those that have the staying power often lack the financial resources to trade those algos for themselves. Problems = Capital, Access, Data, ...
To overcome that some are turning to CloudQuant (where I work). The CloudQuant algo development environment, backtesting tool, and trading strategy incubator is making it easy for people to take their trading ideas to funded trading rapidly. So far they have announced $72M in risk capital allocated to algorirthms created by individuals. Algos are licensed from the creator.