In an effort to turn around its slumping sales and revitalize its management team, toy maker Mattel has appointed interim leader Christopher Sinclair as its permanent CEO, expanded Richard Dickson’s role to president and COO and upped Michael J. Dolan to independent lead director.

The moves follow an extended period of declining sales for the company, the abrupt exit of former CEO Bryan Stockton in January and a new round of layoffs last week at the company’s El Segundo, California-based headquarters.

After serving as interim CEO since Stockton’s resignation, Sinclair will lead Mattel outright effective immediately and resume his role as chairman, too.

“By moving quickly to reduce bureaucracy that has slowed decision-making and diffused accountability, we are already beginning to benefit from greater energy and focus throughout the company,” said Sinclair in a statement.

Dickson, who was upped to president and chief brands officer in January, will now be responsible for all of Mattel’s brands and commercial operations in his newly expanded role.

Dolan, for his part, has been on Mattel’s board of directors since 2004, after serving as CEO of advertising firm Young & Rubicam.

Sinclair has been on the Mattel board of directors since 1996 and was the company’s independent lead director and chair of the audit committee and executive committee from 2011 to January 2015.

More details around Mattel’s new management structure and business strategy are expected to be revealed in the toyco’s first-quarter earnings report on April 16.