We all know the importance of product designers and developers working more closely together. One approach to achieving this is ‘dual-track delivery’. But we shouldn’t think of dual-track delivery as separate tracks, because they’re not. About Ant Boobier: Ant Boobier is Practices Lead at BNZ and has been doing Agile for more years than he cares to remember. RAD in the 90s, XP in the 2000s and a magic mix of Lean UX and Agile today. He is a people geek who loves a good experiment.