 Outside intradivisional match-ups (each of which is played twice-yearly), the home team for each match-up is also determined by the league according to a set rotation designed to largely alternate home and away designations over successive years.This rotation was slightly adjusted in 2010 for teams playing against the NFC West and AFC West, after several east-coast teams (such as the New England Patriots and New York Jets in ) all had to make four cross-country trips to play games in San Diego, San Francisco, Oakland, and Seattle in one season.Although this scheduling formula determines each of the thirty-two teams' respective opponents, the league usually does not release the final regular schedule with specific dates and times until the spring; the NFL needs several months to coordinate the entire season schedule to align with various secondary objectives — such as accommodating various scheduling conflicts, not forcing teams to play too many consecutive games at home or on the road, avoiding giving any one team significantly more rest time than their opponent, and maximizing potential TV ratings.