aLEX Salmond s pitch to his spring conference and the country this weekend is clear: the SNP has a track record, a ministerial team, and a vision for Scotland of which to be proud.  On all three points, this paper is in substantial agreement.  The first Nationalist government has proven itself sure-footed, confident and more innovative than its predecessor. It has removed bridge tolls, ended prescription charges, frozen council tax, recruited an extra 1000 police officers and restarted council house building.  Its support for the construction industry has helped secure jobs through the downturn.  as the First Minister acknowledged yesterday, some things could have been done better.  But taken as a whole, it seems to us Scotland has benefited from a change of administration and Salmond s enthusiastic leadership.  That enthusiasm was to