Gemini's decision to add a Chicago office as rival exchange Coinbase shuts its own branch down leads to business strategy questions, according to The Block's Frank Chaparro. Gemini picked up five former Coinbase engineers to develop what Coinbase axed, a high speed, low latency matching engine. A recent purchase surge also knocked Coinbase offline for ten minutes but have industry insiders unconcerned. Coinbase Pro was still working, the login feature merely failed. According to industry insiders, Gemini could be leaning the wrong way by increasing speed when the question is reliability and adoption.