From the article:

  • Avoid communication failures: your manager should not be surprised by your leaving.

    • Do have regular, clear, frank conversations about your career with your direct manager.
    • Do tell your manager clearly if there’s something you’re looking for in your career which your current role isn’t providing.
    • Don’t withhold concerns or aspirations from your manager.

    The worst you do above:

    But how can I avoid afraid of leaving?

  • Match your notice period to the handover period

    • Hand over: key services and systems, knowledge, documentation, helping hire replacement,helping communicate your departure to the wider team.
    • Avoid giving to much notice

  • Team without you

    • Don’t sabotage
    • Help other people take on larger roles
    • Fresh thiking