Global IT and business process services firm CGI Group Inc. is buying ECS Team, a Greenwood Village-based IT consulting firm. CGI (NYSE: GIB), based in Montreal, says it is the world's fifth-largest independent IT and business process services firm in the world, with some 68,000 employees, including 11,000 in the U.S. across 80 cities and 33 states. It has Colorado offices in Denver and Lakewood. In addition to ECS, CGI said it also acquired another IT consulting firm, Birmingham, Alabama-based...