They were the definition of mediocre for decades prior to their short rise (1980-1984). Then, they were absolutely mediocre again. They've only been good when they cheat. Real improvement the last few years notwithstanding (still a mediocre 61% W/L).

1960s: 35-65-3 (35% W/L)
1970s: 48-59-3 (45% W/L)
1980-84: 49-9-1 (84% W/L)
1985-95 25-71-3 (27% W/L)
1996-05 38-75 (34% W/L)
2006-15 46-79 (37% W/L)
2016-23 60-39 (61% W/L)