By Simon Bird Eddie Howe has insisted Newcastle have not written off the season – and can still sneak into European qualification. The Toon are struggling to refresh their squad in the transfer market and have slipped to tenth in the Premier League on a miserable run of league form. They are 14 points behind their position after 21 games last term when they finished fourth, and have conceded a goal a game more. Aston Villa are the opponents on Tuesday night needing to spark a run of wins to catch their rivals. Newcastle are 14 points behind Unai Emery ’s fourth placed team which means they w…