How would you work with a colleague who wasn’t pulling their weight?

Your interviewer is looking for candidates who "are able to confidently manage potentially difficult and challenging situations." As detailed on the Home Office's website, "Our staff created our new values - to be compassionate, respectful, courageous and collaborative, and we strive to be guided by these in everything we do. We want to always put people before processes, and create the best possible environment for all our colleagues to work in." Describe the efforts you would take to support and help someone on your team to improve their performance while prioritising the vision and values of the agency.