Sinn Féin president Mr Gerry Adams today launched a strong attack on the Reverend Ian Paisley's Democratic Unionists, claiming they were playing "catch-up" with other parties over the peace process.
As he canvassed through his West Belfast constituency on the final weekend of campaigning before Wednesday's Assembly Election, Mr Adams claimed the DUP were putting forward a "dishonest" argument.
He also dismissed as "silly" claims by the SDLP that they were the only party who could stop the Democratic Unionists from taking key seats in the November 26th election.
The West Belfast MP responded to the latest DUP document outlining alternative models for devolution: "The principles, the ethos, the structures of the Good Friday Agreement are not up for negotiation or renegotiation.
"Obviously there are those issues which need to be implemented and the means of delivering those have to be discussed. That is why we are going to have a review to see what progress can be made in the time ahead.
"But you see what the DUP is doing is dishonest. It has always run away from negotiations in the past if you look at their entire history.
"However, the reality is the DUP is a party of failure and Ian Paisley has presided over the fragmentation of broad unionism."
The DUP on Thursday launched its 'Vision for Devolution' which outlined three alternatives to the system of power-sharing which operated in Northern Ireland until October of last year.
The party proposed that a voluntary coalition of two or more assembly parties could run Northern Ireland or the assembly could be given the power to take key decisions, removing the need for any cabinets.