In 1979, he played his final season for the Seibu Lions in Japan before becoming a manager in the minors and eventually a hitting coach in the majors.

Maloof's book Hit Like a Big Leaguer was published by McGraw-Hill in February 2006 with endorsements from Ozzie Guillén, John Kruk and Roberto Alomar, all of whom he had worked with in the San Diego Padres system.

He fielded .986, one point shy of the lead for a New York–Penn League outfielder and also ranked second with 141 putouts, trailing Tony Scott.

Maloof easily won the batting title, 57 points over Mike Cubbage and also led in runs, hits and OBP.

In his final playing year, Maloof went to Japan in 1979, joining Tony Muser as the new American hitters for the Seibu Lions.

That year, the Padres named Maloof their Minor League Hitting Instructor, a position he held until 1990.

For his efforts, he was named the inaugural recipient of the Marlin's Carl Barger Award for Excellence in Player Development in 1992.

During those three year, the Marlins set 18 franchise records including hits, home runs, doubles, triples, total bases, slugging percentage, sacrifice flies, and RBIs.

In 2002, Maloof returned to the minor leagues when he was hired by the Atlanta Braves and assigned as the Hitting Coach for the Myrtle Beach Pelicans from 2002–2004.

In 2008, Maloof was hired by the Kansas City Royals where he served 5 years as the organization's Minor League Hitting Coordinator and Special Assistant to Player Development.