There has been another shakeup in the senior ranks of Premier Kathy Dunderdale's office. 

CBC News has learned that Brian Taylor has taken a leave of absence from his post as Dunderdale's chief of staff. 

The premier's office says the leave is for an unspecified period of time but is offering no further comment.

Taylor was named chief of staff when Dunderdale became premier in December 2010.

He began working in the premier’s office in 2003 under Danny Williams.

Taylor was director of operations for nearly seven years, and had a short stint as deputy chief of staff before Williams retired from politics.