Adopt a 70‑20‑10 approach adapted for speed: most growth from doing, supported by mentoring and targeted instruction. Build micro‑sprints with clear deliverables. Schedule coaching before, during, and after moments that matter, harvesting insights into playbooks others can reuse without relearning painful lessons.
Design stretch assignments that cross boundaries: run a customer council, lead an integration tiger team, or own a small P&L. Set explicit guardrails and sponsors. Evaluate not only outcomes but behaviors under stress, then debrief publicly to normalize learning from imperfect, honest attempts.