The president of Nissan Diesel Motor Co. said Friday his company will promote team work among middle-management personnel, in line with the business strategy of Nissan Motor Co. President Carlos Ghosn.

"As Mr. Ghosn has said . . . 95 percent of business success comes from actual implementation of a plan," Iwao Nakamura said. "We need to have each employee responsible for the plan."

Ghosn has been widely praised for turning around the troubled automaker by, among other things, increasing teamwork among middle-management staff.

Nakamura said Nissan Diesel, Nissan's truck and bus manufacturing unit, will work out a new midterm business plan by September. It will feature measures to cut interest-bearing debts and promote overseas operations and after-sales service.

Nissan Diesel has overseas operations in countries including China, the United States and South Africa.

"We will shift our financial resources toward the most promising markets," he said.

Nakamura said he believes the truck market presents better business opportunities than the car market in terms of after-sales services.

He said he wants to rid the firm of excessive debts as soon as possible. Nissan Diesel is saddled with some 400 billion yen in interest-bearing debts.