The Mets will keep their coaching staff intact when they open a homestand Tuesday night against the Cardinals. The organization decided against breaking the staff apart during discussions via conference call on Monday, according to two sources. New York general manager Omar Minaya fueled speculation by refusing to issue votes of confidence on Sunday. The Mets have not scored in their past 16 innings. They are tied with the Marlins for third in the NL East, trailing the Braves by 7 1/2 games for first place.