PDL BioPharma, Inc. has retained Stephen J. Hoffman, M.D., Ph.D. as senior advisor to the company. PDL aims to acquire income-generating assets to grow shareholder value. Dr. Hoffman brings more than 25 years of experience in pharma and biopharma investing and leadership.   Dr. Hoffman was most recently a managing director at Palo Alto-based venture capital firm, Skyline Ventures. Prior to Skyline, he was a general partner of TVM Capital. Dr. Hoffman was also the founding president, chief execut...