Dentsu has announced that two of its longstanding leaders have been promoted to new leadership roles.

Matthew Landeman will take up the role of chief client officer for its UK media practice and Mike McCoy will be promoted to president of Carat UK.

Both roles are key components of Dentsu’s UK and Ireland media executive leadership team and will report to UK & Ireland media CEO Jenny Bullis.

In his new role, Matthew Landeman will be responsible for the client experience, retention and growth of existing clients across all dentsu media brands in the UK (Carat, iProspect and dentsu X).

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Meanwhile, McCoy will be president of Carat UK, and both roles will be key components of Dentsu UK & Ireland’s media CEO Jenny Bullis.

The appointments will further enable Dentsu to enhance its client service models, product development and growth strategy.

“I am thrilled to have both Matt and Mike step into these key leadership roles; their depth of experience in dentsu’s Media practice is second to none,” said dentsu UK & Ireland media CEO Jenny Bullis.

“We are making significant progress as a business and as a leadership team, innovating to impact for our clients as well as our media partners.”

Carat UK president Mike McCoy added: “It’s a huge honour to lead Carat in the UK and its roster of amazing clients. Carat has always been a pioneering agency, and the scale and depth of the integrated solutions across our client relationships are really cementing a new role for media.”

“As a result, we have clients who are extending their relationships and some brilliant new brands to work with, the perfect momentum to let us double down on exciting work.”