By Larry Fine NEW YORK (Reuters) - The troika running the Copa America Centenario proclaimed the soccer tournament a rousing success on Friday heading into the final weekend of the special event hosted by the U.S., but would not commit to a regular arrangement. *** The 100th anniversary of the world's oldest international soccer tournament was a cooperative effort between South American confederation CONMEBOL, and CONCACAF, representing North America, Central America and the Caribbean, with U.S. Soccer organizing the competition. ... More...