The greatest player in Kansas City Royals history is back in uniform.

The greatest player in Kansas City Royals history is back in uniform.

Unfortunately for the struggling Royals, Hall of Famer George Brett will not be in the lineup. He will assume his new duties as an interim hitting instructor.

Brett and Pedro Grifol are assuming the interim hitting coaches and major league special assignment coach roles, respectively. The Royals have reassigned coaches Jack Maloof and Andre David to the minor league organization.

“Obviously things have not gone as we would have expected and in light of the downturn in offensive production and poor results we've decided to make a change,” Dayton Moore, Royals senior vice president of baseball operations and general manager, said in a press release.

“First of all, I can't thank Jack and Andre enough for accepting this challenge with the major league club. They are both tremendously knowledgeable and hard working men who have already made our organization stronger by their work in the system.

“I'm thankful that this organization has one of the greatest hitters and more importantly one of the greatest competitors our game has ever seen in George Brett and he has accepted our offer to join the coaching staff on an interim basis. We've also added Pedro Grifol, who brings a wealth of knowledge to our staff and will work various aspects of the coaching staff.”

Brett, who turned 60 earlier this month, is the Royals' all-time hit leader with 3,154 during a playing career that spanned 1973 to 1993 and was capped with his induction into the National Baseball Hall of Fame in 1999.

His familiar No. 5 was retired by the organization on May 14, 1994. He is the only player in major league history to win batting titles in three different decades, winning the American League crown in 1976, 1980 and 1990. His 1980 season will always be remembered for his run at the elusive .400 mark, finishing the campaign with a .390 average and winning the American League Most Valuable Player Award.

A 13-time All-Star, Brett is the club's all-time leader in every offensive category with the exception of stolen bases. He was also a Rawlings Gold Glove winner for his work at third base. Retired as a player following the '93 season, this is Brett's first-ever in-season coaching role in baseball. He has served as a vice president of baseball operations since his retirement and has worked on the field during spring training for the organization.

Grifol, 43, is in his first year in the Royals' organization, initially assigned as the hitting coach for the Surprise Royals. He joined Kansas City after 13 seasons in the Seattle organization, serving most recently as manager for High Desert (A) in 2012.

Follow Bill Althaus on Twitter: @AlthausEJC