Barton is replacing Nikki Rooke, who is now Nine's director of sales - total television.
Rooke is replacing Richard Hunwick, who announced his resignation last week.
‘I can’t think of a more exciting time to be joining Nine’ says Rooke about Total TV as a gamechanger
• The two products will capitalise on SCA’s 46% jump in listening hours on digital audio platforms in August
Unwin will lead the Sydney radio sales team, overseeing agency sales, local sales and SCA’s creative services arm
