Ange Postecoglou must bring instant success to Celtic and will not be given time to settle, according to Paul Lambert, who also believes the transfer window will be "massive" for his former club. "It is a massive season for Celtic regarding players going and coming in," Lambert said. "The season Celtic had last year wasn't to the standard everyone expected but you get that when you're at a club of that size. He'll need to find his feet quickly and when it really kicks off, you have to win games. "I don't think it will happen, I don't think the Celtic supporters will want that to happen, and quite rightly so.

Source: Sky sports June 24, 2021 15:11 UTC