The shouts are probably still echoing around Parkhead as well as ringing in the ears of the players.
But everyone around Celtic will have got the message from Ange Postecoglou.
There will be no backward steps for the Hoops boss.
Postecoglou lost his rag with his side on Sunday for daring to dither on the ball and pass it backwards instead of going at Raith Rovers.
Celtic won 4-0 after a stirring second half to reach the last eight of the Scottish Cup.
But their gaffer wasn't too chuffed with that opening 45 minutes and didn't hold back in his post-match press conference. Postecoglou's mood had lightened by the time he hooked up with some of his former sparring partners in the Australian media yesterday.
And they were not surprised to see their old pal letting rip with a routine they've seen for nearly two decades.
Postecoglou opened up to the Aussies about his time at Celtic. The tough start and the European lessons, the importance of his industrial recruitment drive and his hopes for the future.
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