WASHINGTON (AP) _ Vice President Al Gore's chief of staff resigned on Monday for a more lucrative private-sector career.

In the latest personnel change under campaign chairman Tony Coelho, chief of staff Ron Klain will be replaced by Gore's chief White House counsel and fellow Tennessean, Charles Burson.

``I have always valued and will continue to value Ron's intelligence, loyalty and acumen,'' Gore said in a statement. ``I'm not letting him go completely.''

Burson is a former Tennessee attorney general. Klain has accepted a partnership in the Washington office of the Los Angeles-based law firm O'Melveny & Myers.

Klain allies said Monday that the friction between him and Coelho when the former congressman first took over Gore's presidential campaign in May had been smoothed over.

From his law office, Klain will serve as ``an uncompensated senior strategist'' and participate in regular campaign strategy meetings and ``take on special assignments'' from Coelho, Gore said.

As chief of staff, Burson will oversee the dozens of personnel who work at the White House for the office of the vice president, which encompasses Tipper Gore's staff as well.

``I have known Charles and his family for more than 30 years. My parents were friends with his parents,'' Gore said.