Stepping Stones not Milestones
Sets out an argument for project planning via "stepping stones" over "milestones". The argument is that avoiding a big plan-up-front (a series of milestones) in favour of stepping stones at each you can stop and chose the next stone allows for demonstrating progress but with flexibility. Each stepping stone has some kind of deliverable and moves towards the overall strategic goal. This sounds a lot like how I approached our migration to React, but frames it a bit better than "flying by the seat of my pants" :D