Sounds a bit like early years Bruce Kovner of market wizards and hedge fund fame.
Im not a trader and wouldnt know a single one if I passed him in a strip club. I assume these ex-institutiomal guys have been constantly steered away from whats not likely to work to what
can work, they know a wide range of how multiple assets and their markets work from a non retail perspective, were able to compete with like talented people within their orgaization and succeed, have a very good idea where and how they can succeed independntly without the shackles of their firm, and finally, know their prey and know who not to compete with.
All of the above is probably an edge.