Edward Muzio's grandfather worked in the same company his whole life. His mother labored in the same industry until she retired, though for different employers. But between the two of them, Edward and his brother have worked in six different career fields during 30 combined years. Muzio, president and CEO of Group Harmonics, Inc., in Albuquerque, N.M., says accelerated movement -- often called job hopping -- is becoming the norm. "Not long ago we all said that the average person changes jobs about seven times in his or her lifetime; now we say it's probably more than 10 jobs over at least five different careers," he explains.