This is not true outside of equities. Most flow desks at banks, for example, do not auto trade when the sizes are above a certain threshold. Nor do most funds use algos at a level above mere execution.
Quote from dandxg:
I believe one of the last few trading desks not full automated would be Mark Fisher's, but Maverick probably knows better than I. Unless you can program, the algos left you in the dust. Depending on whose stats you believe 60-70% of trading is full automated so they have no need or little for someone sitting on a trading desk.