IFAST runs this portfolio IFAST DPMS whereby you or any investor in it gives discretion to the asset manager (IFAST) to manage the portfolio on your behalf fully.
DPMS stands for Discretionary Portfolio Management Solutions.
The investment service helps you invest for the long term by
1) Choosing the opportunities in the market to invest more (If china equities are cheap, the portfolio has more of it)
2) Choosing the best performing fund (wouldn't it be make sense to choose better performing funds)
3) Keeping portfolio according to your risk profile (this is done by re-balancing)