American micro-blogging and social networking service Twitter new CEO Parag Agrawal has begun restructuring the company and two senior executives have already stepped down as part of the reorganization plan.

The Washington Post cited an internal email from Twitter chief. Design officer Dantley Davis, who joined the company in 2019, and head of engineering Michael Montano, who joined in 2011, have quit.

“Dantley’s departure is singularly focused around shifting our organisational model around a structure that has one lead manager supporting a key company objective,” a Twitter spokesperson said.

“We don’t have further details to share on these changes out of respect for the individuals involved,” the spokesperson added, according to media reports.

In an email, Agrawal had written that the company has recently updated its strategy to hit ambitious goals, “and I believe that strategy to be bold and right”.

“But our critical challenge is how we work to execute against it and deliver results — that’s how we’ll make Twitter the best it can be for our customers, shareholders and each of you,” he added.

According to Twitter, “Parag is focused on operational excellence and setting Twitter up to hit its goals and these changes were made with that in mind”.