By her own admission, Deirdre Lane could do whatever she wanted whenever she wanted to do it. She could afford to get the best people in the best rooms and dine in the best restaurants without ever having to worry about the bill. “I had zero budget,” Lane says. From Kildare, Lane had carved out a stellar career in international finance, working for Lehman Brothers, Citibank, and JP Morgan, where she was promoted to vice president. Over her career, she had developed hedging strategies for airlines, shipping firms, producers and energy consumers, and, while working with Nasdaq, scaled its Nordic…