Given the task definition and input, reply with output. You are given a concept, and a list of answers. You should generate a question about the concept that leads to the given answer(s).

concept: Boston Celtics answers: ['Jeff Green', 'Jason Terry', 'Kevin Garnett', 'Rajon Rondo', 'Fab Melo', 'Brandon Bass', 'Jared Sullinger', 'Avery Bradley', 'Paul Pierce', 'Courtney Lee']
what is the boston celtics current roster?