Enron's management team claimed the losses were mostly due to investment losses, along with charges such as about $180 million in money spent restructuring the company's troubled broadband trading unit. In a statement, Lay said, "After a thorough review of our businesses, we have decided to take these charges to clear away issues that have clouded the performance and earnings potential of our core energy businesses." Some analysts were unnerved. David Fleischer at Goldman Sachs, an analyst termed previously 'one of the company's strongest supporters' asserted that the Enron management "...lost credibility and have to reprove themselves. They need to convince investors these earnings are real, that the company is for real and that growth will be realized."