Move Fast. Build Right. CORE SPICE is a lean, coaching-based framework for running safety-critical systems development projects (automotive, medical devices, vehicles, avionics, etc.—the made-to-order programs where scope, budget, and the start-of-production date are fixed before the team writes a line of code. I have spent decades inside development programs, almost always the ones already in trouble. The same pattern keeps showing up. The schedule is slipping, the defect counts are moving in