Announced today, Abraham's restructure of Channel 4 will reduce the number of his direct reports from the current 13 to just six. The overall senior management team will be reduced by 25%, or 12 posts, by the end of 2010.
Channel 4 said that the process will be achieved by "not replacing current vacancies and by a small number of redundancies".
All Future Media commissioning and production staff involved in Channel4.com and digital initiatives such as 4iP will move over to the TV commissioning team in an enlarged division.
A new chief creative officer role has been established to lead the division, with the position combining the duties of Kevin Lygo, the former director of TV and content who has joined ITV, and Julian Bellamy's responsibilities as head of Channel 4.
Channel 4 plans to advertise for the role, with Bellamy standing in during the recruitment process. He has also been invited to apply for the post.
Abraham claimed that it is important to hold an open recruitment process to identify the new creative leader, but that is "in no way a reflection" of Bellamy's capabilities as he will be a "strong candidate" for the position.
Abraham, who joined Channel 4 last month from UKTV, said that the restructure is about integrating the broadcaster's commissioning and content teams in the anticipation of a coming "tipping point in the convergence of television with other media".
"We need to fundamentally evolve the way we work in response to this convergence, becoming leaner, more efficient and blending a multi-platform approach into the centre of the organisation, rather than leaving 'new' media in its own isolated silo," he said.
"Combining our two most senior creative roles also takes out a layer of management and is intended to offer our commissioning heads a clear and direct route to the creative centre of the organisation, delegating more responsibility to them and empowering them to pursue creative innovation across all platforms.
"We will also look at a further restructuring of our commissioning teams to again reduce layers of management and overlap and offer our independent suppliers that same direct route into our senior creative decision makers."
Also in the changes, Channel 4's current group finance director Anne Bulford, who acted as interim chief executive between October 2009 and May 2010, has been promoted to chief operating officer.
Alongside the role's core responsibilities, she will also have oversight of the strategy department, commercial and business development and all technology operations.
The restructure has further created two new senior executive posts: a director of audience technologies and insight, and an external communications role.
The director of audience technologies will "oversee all activities relating to research, data capture and database management analysis", and then advise the board on how to commercially exploit the information throughout the organisation.
"Channel 4's great strength is its ability to inspire loyalty amongst certain audiences who feel great affinity with our programmes and brands, but we have hardly scratched the surface when it comes to understanding and managing these relationships for mutual benefit," said Abraham.
"The aim is to fundamentally change our culture to become much more audience focused and create an even greater sense of connection with our brand in the highly competitive and converged world of fully digital media."
Andy Barnes will continue to lead Channel 4's advertising sales team, which is currently working with the Boston Consulting Group on a performance review, scheduled to close in early July. Diane Herbert will also retain responsibility for human resources and facilities management.
"The principles guiding this restructure are a desire to encourage increased collaboration and team working and to unite our creative teams behind a shared vision across all platforms," Abraham concluded.
"By stripping out layers of management throughout the organisation, we aim to ensure Channel 4 is structured most effectively to meet the challenges and take advantage of the opportunities that arise from the increasing convergence of digital media."