Tate Liverpool is to undergo a period of upheaval following announcements this week that director Christoph Grunenberg is leaving and that the gallery is carrying out an organisational review, which will see a reduction in the number of posts.

Grunenberg, who has been at Tate Liverpool for 10 years, will leave in November to become the director of the Kunsthalle Bremen in Germany. The gallery is now looking for his replacement.

Tate Liverpool's organisational review will continue into 2012, with any changes fully implemented by spring 2013.

The government's comprehensive spending review in October last year cut the budgets of Department for Culture, Media and Sport-sponsored museums, including Tate, by 15% over four years. Tate also has two galleries in London and one in Cornwall.

A Tate Liverpool spokeswoman said: "The review at Tate Liverpool will result in a reduction of posts and where possible we will seek to make any changes through holding vacancies, maximising redeployment opportunities and voluntary redundancy. It’s too early to say if there will be any compulsory redundancies or how many posts will be lost."

Tate Liverpool has 164 members of staff: 49 full-time, 28 part-time and 87 casual.
 
A Tate Liverpool statement said it would continue to open on Mondays and hold special exhibitions: "The review will increase Tate Liverpool’s organisational flexibility, enabling us to enhance and develop our visitor experience. We have been working closely with our staff and the recognised trade unions to ensure that we minimise the impact upon staff."

During his time at Tate Liverpool, Grunenberg chaired the Turner Prize jury in 2007, the first time in its history that the exhibition and award ceremony were held outside London. He also contributed to the city’s year as European Capital Culture of Culture in 2008, when Tate Liverpool attracted more than one million visitors.

Grunenberg took an active role in curating exhibitions, which have included Shopping: A Century of Art and Consumer Culture; Summer of Love: Art of the Psychedelic Era; Picasso: Peace and Freedom; and the current exhibition René Magritte: The Pleasure Principle.