League Managers Association chief Richard Bevan says Newcastle boss Joe Kinnear was out of order with his foul-mouthed rant last week.
Bevan said: "Whether it's a manager, owner or even supporter, such heavy use of language is unacceptable when in a public arena. However, in Joe's case his conversation did start off the record and in a private meeting."
When asked if Kinnear should apologise, Bevan added: "If it wasn't a private meeting, then the answer is yes."