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04/01/2013 4:13 PM ET

Orioles add Diaz to coaching staff

ST. PETERSBURG -- The Orioles have added Einar Diaz to the Major League staff, promoting him to an assistant coach position, where he will help hitting coach Jim Presley.

"There are somewhere between 17 and 20 teams taking advantage of the new rule," said Orioles manager Buck Showalter, referencing Major League Baseball's rule change that allows a seventh coach to be in the dugout or bullpen this season.

"He throws a real, real good batting practice, which is very valuable. We lost a good arm in DeMarlo [Hale]. And you're talking about 162 games. I've had Einar as a player. Einar is just a solid human being. He'll fit in real well in the clubhouse. Seamless. I won't say he was trying out, but I was looking at him potentially being that guy and it really seemed like a good fit for both of us. Einar makes us better."

Diaz, 40, is in his sixth year as a coach in the organization, and Butch Davis has been promoted to Double-A Bowie to take Diaz's spot there. Diaz has also had assignments with the rookie Bluefield club, Gulf Coast League, short-season Aberdeen and Class A Delmarva.

As a player, Diaz's career spanned 11 Major League seasons for the Indians, Dodgers, Rangers, Expos and Cardinals, and he hit .254 with 523 hits, 21 home runs and 202 RBIs. Diaz was a member of three Indians teams that reached the postseason (1998-99 and 2001) and one with St. Louis ('05).

Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.