The period between protocol finalization and first patient enrolled is where trials lose the most time, yet most delays aren't failures of expertise. They're failures of coordination: tasks started before prerequisites were complete, wrong document versions distributed, or training scheduled before IRB approval arrived. Recent data shows studies that activated in 140 days hit their enrollment targets, while those taking 187 days fell short. Contract negotiations alone average over 100 days at academic centers, and standardized templates like ACTA can cut that by 48 days. Sites using central IRB approval activated 88 days faster than those using local review. The checklist approach works because it forces visibility on dependencies that would otherwise slip. Feasibility must verify actual site capacity, not optimistic projections. Regulatory packages must be complete before site submission. Budget and IRB work can run in parallel, but nothing activates until both close. The most recoverable time is in the handoffs between phases, where unclear sequencing creates wait states no one owns.