Which non-playoffs team had the most points in the regular season in the year 1998?
non-playoff refers to PostGP = 0; in the year 1998 refers to year = 1998; the most points refers to max(o_pts)
SELECT T2.tmID FROM players_teams AS T1 INNER JOIN teams AS T2 ON T1.tmID = T2.tmID AND T1.year = T2.year WHERE T1.year = 1998 AND T1.PostGP = 0 ORDER BY T1.points DESC LIMIT 1