He also launched himself into community service, becoming the chairman and president of the Auckland Welsh Club in the early 1990s. Mr Coslett co-ordinated the community sponsorship scheme for Welsh migrants, advising and supporting the immigration process for his countrymen.
His work with the Welsh Club led to him striking up a friendship with Jonah Lomu's manager Phil Kingsley Jones who also hailed from Wales. He met Lomu through Kingsley Jones and the two men immediately hit it off.
"I knew Jonah very well, he called me Uncle Nev."
The two men shared a common bond through the Counties Manukau Rugby Football Union. Lomu made his first-class debut for Counties in 1994, playing 28 times for the Steelers before transferring to Wellington. Mr Coslett managed Counties Manukau's age group squads, starting with the under-15s and finished as manager of the under-21 team.
"It was a very upsetting time for me when Jonah passed away. He was a very kind-hearted man."
He recalled happy evenings watching the All Blacks on TV with Lomu at Mr Kingsley Jones' house after illness ended Lomu's playing days.
The later years of Mr Coslett's career saw him working as a financial mediator, hired to find solutions for companies that were at loggerheads.
The death of his wife after 44 years of marriage saw him shift to Tauranga where he now lives at the Pacific Coast Village.
"What I have done I have done for living in New Zealand because I love it so much and I am so grateful for being here."
