Complex sentence: MRC's Head and Elite Coach, Nick Garratt, who has an extensive Olympic and World Rowing track record, is supported by six other coaching staff to keep MRC at the top of elite rowing in Australia.
Split into simpler sentences: MRC's Head and Elite Coach, Nick Garratt, has an extensive Olympic and World Rowing track record. He is supported by six other coaching staff to keep MRC at the top of elite rowing in Australia.