I don't think it will be what puts them over the top, but I wouldn't say he is washed up. He averaged 17 points and nine rebounds a game last season and was healthy most of the season. Now I realize he isn't what he once was, but still could help.
Washed up is a little strong I guess and maybe being on a team that already is a threat to win a title might put him in the zone. No doubt the man can play.