Complex sentence: As he was already 57 years old in 2016, Mannion applied for a contract renewal hoping to secure a further five year term but left in late March 2016 when his contract was not renewed by the Chairman.
Split into simpler sentences: As he was already 57 years old in 2016, Mannion applied for a contract renewal hoping to secure a further five year term. He left in late March 2016 when his contract was not renewed by the Chairman.