"The Newsroom" is undergoing a big staff change. But don't worry -- Will McAvoy will still be at the fictional cable news network ACN.

The Aaron Sorkin-created HBO drama is undergoing an upheaval in its writing staff, with Sorkin replacing a number of writers on the staff.

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The extent of the turnover is not known. According to one report [5], Sorkin is replacing all but one writer, Corinne Kingsbury. However, an individual familiar with the situation told TheWrap that the report is exaggerated, and that Kingsbury isn't the only holdover.

HBO confirmed to TheWrap that changes are being made to the "Newsroom" writing staff, telling TheWrap in a statement, "Every year each show reassesses the needs of its writing staffs. This process is nothing out of the ordinary."

The series, which premiered June 24, has been picked up for a second season.

Also read: Why Do TV Critics Hate "The Newsroom"? Howard Kurtz and Sharon Waxman Debate (Video) [6]

Though "The Newsroom" has received lukewarm reaction from critics, the series has performed well on the ratings front, grabbing 2.1 million total viewers with its premiere airing, and topping those numbers with its third episode.