It was my impression when I was interning at Citi (quant/strategy/trading) that they weren't very experimental buyers, and frequently liked to reinvent the whee

It was my impression when I was interning at Citi (quant/strategy/trading) that they weren't very experimental buyers, and frequently liked to reinvent the wheel. They certainly didn't redo EVERYTHING. Besides that, there aren't that many big banks to sell to. I'd say it's trickier than average to get a market fit. But maybe you're right that they'll buy any old crap.