Use Complex and Infrequent Tasks as Training Opportunities for Rising Leaders
Tasks like writing performance reviews and making hiring plans are yours alone. However, these are also the skills you will want to pass on to rising managers. You may have a tech lead sit with you to write the performance review for an intern, or have a senior engineer provide feedback on how many new people he believes would be needed to support a project next year. Ask for help from above on these tasks until you feel comfortable doing them, but once you feel comfortable, start pulling in rising leaders to learn how they are done.