DETROIT — General Motors could literally turn green as it readies itself for major management and cultural changes that will coincide with its escape from bankruptcy protection.

People briefed on its plans say the company is looking into changing the background color of its corporate logo from blue to green in an effort to show consumers that it is leaner and greener, more focused on fuel efficiency and better able to make quick decisions.

Ed Welburn, GM's vice president of design, is leading a group that is studying name and logo changes, but no recommendation has been made, according to one of the people.

What has been decided, though, is the need for management and cultural changes. New CEO Fritz Henderson is preparing to cut another 4,000 white-collar jobs, including 450 executive-level employees such as plant managers or engineering group heads.

Henderson, under pressure from the new GM's largest shareholder, the U.S. government, wants a more nimble company, one that can make decisions faster and is less bureaucratic than the GM of the past.

In the old GM, several committees often reviewed decisions, holding up new vehicles and making it slow to respond to market changes. Designs were often changed from bold to bland, with GM stamping out nondescript cars such as the old Chevrolet Malibu. With taxpayer dollars and its very existence on the line, GM can no longer afford to take too long.

So Henderson will thin executive ranks by 35 percent, from about 1,300 to 850 by the end of the year. Total U.S. salaried employment will drop by 6,150, or 21 percent, from 29,650 at the start of the year to 23,500 by the end.

The changes could be announced as soon as Friday after the courts clear the sale of GM's good assets to a new company largely owned by the U.S. and Canadian governments and the United Auto Workers union. They will flatten the automaker's organizational chart, eliminating work groups and shrinking the organization to match a smaller footprint, according to the people briefed on the plan.

The flatter organization will make it easier for Henderson to hold people accountable for their work, while focusing more on product development and customer service, one of the people said.

The new structure would be similar to one imposed on Chrysler Group by Fiat CEO Sergio Marchionne, who now controls the company. Marchionne shed layers of management.

General Motors also could announce a subcompact car to be built at a Michigan factory, widely believed to be the four-seat Chevrolet Spark minicar now being sold in China.

The new GM, however, is betting that car buyers will shift to small as gas prices swing wildly, and it's trying to upgrade that class of vehicle. The company says lower labor costs and higher sales prices should yield more profits.