Robbie Savage has renewed his attack on Wales manager John Toshack by branding the national set-up an 'utter shambles' and calling on him to quit.Former Wales midfielder Savage has not played for Wales since being left out of Toshack's first World Cup qualifying squad two years ago. The 32-year-old, who has 39 caps, retired from international football after being excluded and now says he would not return even if Toshack, who 'really should go', was to leave. Blackburn player Savage told The Sun: 'Ryan Giggs is about to play his last game against the Czech Republic and he couldn't be calling it a day at a better time. Our game is an utter shambles. 'I watched the friendly against New Zealand last week, when we drew 2-2. Blimey, Blackburn beat the Kiwis last summer 5-0. 'That was a disaster, with no redeeming feature. Yet he tried to find some. It was seriously humiliating. 'If he was honest with himself, he'd look in the mirror and say, `I've failed' and walk away. It would be the honest and truthful thing to do. 'It really is time he called it a day. He has failed and along the way forced players to retire. He really should go.' As for his own future, Savage added: 'International football is behind me now.'