BlackLine Systems is an enterprise software company that develops cloud-based solutions for the finance function. Patrick Villanova took over as CFO in March after nearly 10 years at the Nasdaq-listed company. He was previously lead audit senior manager at PwC. Global Finance: What has been the biggest challenge in your first six months as CFO? Patrick Villanova:  I had a long preparation at BlackLine, but nothing fully prepares you for being in the spotlight. The biggest shift has been