Cable channel Oprah Winfrey Network on Tuesday announced a restructuring that will result in layoffs for one-fifth of its staff, or about 30 people in Los Angeles and New York.

OWN’s studios are located on Wilshire Boulevard on the Miracle Mile section of Los Angeles.

In a statement, Chief Executive Oprah Winfrey said it was a difficult decision, but the economics of a startup cable channel couldn’t support a cost structure with so many employees.

“As CEO, I have a responsibility to chart the course for long-term success for the network,” Winfrey said in a statement. “To wholly achieve that long-term success, this was a necessary next step.”

The restructuring comes just days after OWN shut down “The Rosie Show” hosted by Rosie O’Donnell. The show taped in Chicago.

Launched in January last year, OWN is a co-venture between Winfrey’s Harpo Productions in Chicago and Discovery Communications in Bethesda, Md.