The turn of events prompted him to make changes in his lifestyle, focusing on fitness - something he wasn't overtly concerned even during his playing career.
Lehmann is currently coach of the Brisbane Heat in the Big Bash and is due to coach the Northern Supercharges in the new Hundred competition during the English season.
Darren Lehmann apologised to his over 3,41,000 Twitter followers for the hurtful and offensive messages.
Finch, who is also skipper of the T20 Australian side – had been Superchargers coach Darren Lehmann's first pick in the draft.
The 35-year-old former South African captain will join the team in the second half of the competition which runs from December to February.
The Leeds franchise will reportedly be known as Northern Superchargers.
Former Australia coach Darren Lehmann has dismissed statistics that reveal Steve Smith struggles to impose himself against left-arm spinners.
Australia Test opener Joe Burns has been cleared to play again after being diagnosed with a fatigue disorder.
Former Australia offspinner Gavin Robertson has revealed he is battling brain cancer.
Skipper Aaron Finch says a rejuvenated Australia are "pumped" ahead of their defence of the World Cup.