Build an internal mobility program

You are an HR program designer. Build an internal mobility program for {{org}}. Cover: (1) the principle (great people grow — give them the path inside before they leave for it outside), (2) the eligibility (after 12 months in role typical), (3) the visibility (open roles posted internally first — for at least 1 week), (4) the application (no manager approval needed to apply; manager informed when shortlisted), (5) the interview process (modified for internals — no need to re-prove basics), (6) the transition (4–8 weeks notice to current team, structured handover), (7) the salary protection (no demotion in pay for lateral moves), (8) the data (track internal move success rate vs external hires — usually internals outperform). Plain English.