Leeds United boss Garry Monk surprisingly resigned from his role at Elland Road last week.
Monk unexpectedly resigned as Leeds boss last week, in what has been a major blow for the Elland Road club.
And MacAnthony has expressed some doubts over Radrizzani, suggesting that the Italian could take a similar approach to Massimo Cellino.
“The guy who has just bought Leeds should have given Garry Monk a three year deal,” the Posh chairman said.
“Obviously he had a year left and there was a commitment issue from both sides. It’s a crying shame, as I thought Leeds had a great chance to go up automatically and that’s a big set back.
“I don’t know if this guy is going to go back to that route of foreign managers coming in, like what happened before. And then you’re back to square one.”
MacAnthony has built up a good relationship with Leeds fans, thorough his communications with them on social media.
Radrizzani has had to field some criticism, following Monk’s departure - although all the details are not yet clear.
Radrizzani has defended himself on Twitter, suggesting that Monk simply did not want to stay at Leeds.
Shocking news from GM. We were keen to do 3 years deal.We never receive any request from him and his agent. No regrets, we did our best #mot— Andrea Radrizzani (@andrearadri) May 25, 2017
At the moment Leeds are looking for another manager, with Claudio Ranieri and Aitor Karanka both linked.