If coordinating with service providers is hard for a firm, I would argue the cost effective answer isn’t “let’s do all this in house”. Many big finance firms fall in this trap of thinking it’s cheaper to build v buy, and that’s how you get everyone building their own worse versions of everything. Whether your firm is good at the markets or kitchens or travel bookings, thinking you can efficiently in-source tech is a huge fallacy.

Or the high speed car chase equivalent of it, find hitler