Speers are said to be Sky's most paid guests while his new employer, the ABC, is facing a budget cut of $ 84 million and warned the managing director David Anderson that he would cut and disrupt the content of the national broadcaster.
Michael Rowland, co-host of the national TV program and national broadcaster, and Patricia Karvelas, Radio Radio's host, had been sounded as internal candidates to replace Cassidy, but both addressed Speers' enthusiasm reports.
"David Speers will comfortably fill Barrie Cassidy's big boots. Real class act! Welcome on board, partner," said Rowland on Twitter.
Karvelas made similar comments, saying she was looking forward to reuniting with Speers Insiders as Fran Kelly, ABC breakfast breakfast hotels.
Cassidy, 69, is stepping down on June 9.
"I am convinced after 18 years that it was time to try someone else," Cassidy said when he announced his resignation in March. "We can list half a dozen within the organization that could do it well … but I won't!"
During the federal election campaign, Speers moderated the arguments between Tony Abbott and Zali Steggall and between Prime Minister Scott Morrison and Leader of the Opposition Bill Shorten.
News of his appointment was also greeted with widespread applause among senior journalists outside ABC's.
Ten of the Network's political editors, Peter van Onselen, said the decision to appoint Speers would be great for those working.
"Barrie is unique, but David is so close to you," said van Onselen on Twitter.
Chief political correspondent for The Age a The Sydney Morning Herald David Crowe said that "a very good appointment" and senior investigative journalist Kate McClymont said that Speers' departure was a "big, big blow to Sky News."
The ABC is going through changing generations amongst guests of some of its leading programs with Tony Jones moving forward. Q&A ABC resident Melbourne Radio is retiring at the end of the year.
A spokesperson for ABC refused to comment and Speers did not respond to attempts to contact him.
Nick is a journalist for The Morning Morning Herald.