Buckley - who resigned on Wednesday morning - will coach his beloved Magpies one final time on Queen's Birthday against Melbourne in Sydney, with assistant Robert Harvey named as the club's interim coach for the rest of the season.
With the post still vacant in the long-term, Kane Cornes has named his Port Adelaide premiership coach Mark Williams and Hawthorn assistant Sam Mitchell as potential options for the Magpies to consider.
Cornes has included Mitchell in his blueprint despite the word that the Brownlow medalist is projected to supersede current Hawks senior coach Alastair Clarkson after the expiration of his contract in 2022.
"I just wonder whether Mark Williams is worth ringing – actually – I know that he’s worth ringing", Cornes told SEN SA Breakfast.
"I think something unique but something a bit innovative, maybe a Williams-Mitchell combination where Mark Williams at his age coaches for two years at Collingwood, helps develop the young group, they’re in a rebuilding phase with a lot of players coming through.
"They’re going to go to the draft again next year, we know no one in the country is better with young players than Mark Williams."
Cornes continued to champion his former mentor's ability and claimed that Mitchell could also provide the Pies with the final piece of the puzzle.
"Yes, it’s a little bit different, it’s something that they probably wouldn’t have considered before, but I think that’s a partnership that could work at Collingwood".
Alternatively, Tim Watson has urged Collingwood to consider Geelong assistant coach Matthew Knights as a potential senior coach candidate.
"Matthew Knights is definitely somebody who should be looked at", Watson told SEN Breakfast.
"He got the Essendon job I think before he was ready to be a senior coach. He has a wealth of experience now as an assistant.
"He has to be better and more understanding of the complete role as he was as a young coach.
"I would definitely interview Matthew Knights. 100 per cent I would".