Jorge, the office manager of Metalblock Inc., believes that providing positive consequences for a job well done will increase the likelihood of good work performance in the future. Jorge personally sends e-mails to his employees to commend their efforts when they perform well. Karla, the CEO of Descriptive Designs Inc., takes her employees off probation early when they perform to her expectations. Barney, the sales manager of Queenstar Corp., often shouts at his employees when they perform poorly. He also fails to appreciate employees when they perform well, which often results in poor performances. Karla removes her employees early from probation if they perform well. This is the best example of