March 20 (Reuters) - CBS News will lay off about 6% of

its workforce, according to a source familiar with the matter,

in the latest move under new Editor-In-Chief Bari Weiss to

revamp the network and boost its ratings to catch up with rivals

ABC and NBC.

"It's no secret that the news business is changing

radically, and that we need to change along with it," according

to a memo sent on Friday to employees by Weiss and CBS News

President Tom Cibrowski, which was seen by Reuters.

It was not immediately clear which business units or shows

were affected by the layoffs.

High-profile journalists such as "60 Minutes" correspondent

Anderson Cooper have parted ways with CBS News since Weiss took

over as the network's new editor-in-chief in October, following

Paramount Skydance's ( PSKY ) purchase of her outlet The Free

Press.

Weiss is looking to revamp the newsroom and bring on a

"streaming mentality" to the network. She unveiled her strategy

in January to add 19 new contributors while focusing on

restructuring operations and starting news coverage on digital

platforms.

Employees who are affected by the latest layoffs are

expected to be notified by the end of the day, the memo said.

"New audiences are burgeoning in new places, and we are

pressing forward with ambitious plans to grow and invest so that

we can be there for them... parts of our newsroom must get

smaller to make room for the things we must build to remain

competitive," the memo said.

Variety first reported the news on the workforce reduction.