Who says the best days of the big-firm partner are over? Kirkland & Ellis officially announced Tuesday that Robert Khuzami, who ended his four-year run as director of the Securities and Exchange Commission's enforcement division in January, has joined the firm as a partner in its government, regulatory and internal investigations practice.

Joining Khuzami in making the move to Kirkland is Kenneth Lench, who will be a partner in the same group after closing out his 23-year SEC career last week when he stepped down from his post as head of the enforcement division's structured and new products unit.