Stephen DeFalco has been appointed COO of MDS Inc and will become president and CEO when he replaces retiring John Rogers at the end of 2005. Defalco is chair and CEO of US Genomics, a firm he founded in 2003. Prior to that he was president of PerkinElmer Instruments and senior VP of PerkinElmer Inc. Defalco holds an MS in management from Sloan School of Management, MIT, an MS in computer engineering from Syracuse Univ and a BSc in mechanical engineering from MIT. Rogers will step down as CEO after 10 years, a period marked by rapid growth followed by several years of operational challenges and the failure of MDS Proteomics, which underwent a bankruptcy restructuring last year (R$, June 15/04)….