HOW DO PEOPLE SPEAK UP?WHISTLEBLOWING IS A PROTRACTED PROCESSWHAT EXPECTATIONS DO SPEAK‐UPS ENTAIL?CHALLENGES OF OPERATING SPEAK‐UP ARRANGEMENTSBARRIERS TO RESPONSIVENESSSTRATEGIES FOR TRUSTWORTHINESS (AND THEIR POTENTIAL PITFALLS)FACILITATORS OF RESPONSIVENESSUSING SPEAK‐UP DATABRINGING IT ALL TOGETHER: A MODEL FOR DEVELOPING SUSTAINABLE SPEAK‐UP SYSTEMSCONCLUSIONENDNOTES