Thursday's fifth and final Ashes Test at The Oval will be Bayliss' final assignment as England head coach.
Veteran spinner Nathan Lyon looked to be leading the celebrations as the visitors sang "True Blue" - an Australian folk song written and performed by singer-songwriter John Williamson.
Australian Bayliss added: "Everyone goes through periods where they don't score as many runs as they'd like".
"I think everyone in this room, everyone around the world has seen the great spirit the World Cup and this series have been played in". "I'm not saying he can't get there".
"He's had a huge World Cup, he had a huge IPL". It's time for the lads to hear a new voice. It's been a fantastic environment to work in, everyone has made me feel at home.
Langer has come forward and denied batsman Steve Smith mocked English rival Jack Leach when he was celebrating winning the series on Sunday.
Bayliss, however, has dismissed that as "fake news, like Donald Trump says". There's no better place in the world to bat than the Oval.
He added: "No-one has mentioned it or spoken about it".
The obvious conclusion was that he was unkindly parodying England's Jack Leach, though Australia coach Langer insists Smith was mimicking Chris Rogers - who last played for Australia in 2015.
"Experience tells me, when you're doing well people try and pick holes in you", Langer told reporters. "It's all talk from you guys [the media]".
"I don't want to see the crowd talking about how amusing he is, or how amusing that run was, or Specsavers". I was there, I know the truth, they were talking about Chris Rogers, who was here four years ago. "It was an important toss to win but having got them in the position we did early on it was important to make the most of that", Root said reflecting back on the 185-run loss in Manchester.