With captain Nemanja Vidic leaving in the summer and rumours of other senior players being unhappy with Moyes' approach, Allardyce welcomes United to Upton Park on Saturday evening with advice for the former Everton manager.
"He has to establish his own ideas," said Allardyce. "Transition is something where you have to get your own ideas over. Then you have to find out who wants to roll with you or not.
"If they don't want to roll with you - irrespective of what they have done before - as many chief executives have said to me, 'Don't waste your time on them - get rid of them son!' Transition has to be expected."
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