In a peer-voted system, their pair will continue in their role from 2017 with Max Gawn and Jordan Lewis acting as vice-captains.
The Demons have opted for a slim, four-man leadership model this season with General Manager of Football Operations Josh Mahoney confident in the success of the model.
“We believe this leadership model is the best model for the Club, as it allows for streamlined communication and accountability,” he told melbournefc.com.au.
“The growth of Nathan and Jack last year was significant,” he said.
“They formed a strong partnership and worked incredibly well together in leading the Club.”
The 30-year-old Jones has captained the club since 2014 and with 239 games to his name, Jones is one of the most revered players in the game.
Viney, meanwhile, impressed in 2017 despite missing four games through injury while Gawn’s emergence as one of the game’s elite ruckman in 2016 carried on into last season, despite suffering a length hamstring injury.
“Max’s emergence in this area has been substantial,” he said.
“His influence and care for the entire Club has really made a positive impact and becoming a Vice Captain is great recognition for his hard work in this area.”
“Jordan came to the Club with significant leadership experience,” Mahoney added.
“He has been a great mentor and has continued to impart his knowledge onto the group.
“He will play a key role in the leadership for our Club.”
While some clubs have opted for seven to eight players in their leadership group, Mahoney says every player on the list as a responsibility to help the club achieve their goals.
“Leadership doesn’t just rest on four individuals,” Mahoney said.
“We have players across the playing list who all play a role in driving behaviours.”