This followed a damning Audit Commission report that for the second time running found work on supporting people was 'poor', with uncertain prospects of improvement and a 'very concerning' lack of progress.
Christine Talbot (Con), executive member for adult services and secondary education, admitted that: 'Voiceless and vulnerable people have been badly let down in the county.
'There can be no excuses. We were very poor at engaging people who are among the hardest to reach.'
Lincolnshire was in turmoil following the jailing of former leader Jim Speechley (Con) for misconduct in office (LGC, 9 April 2004), and the ousting of chief executive David Bowles, who gave evidence against him, (LGC, 3 September 2004).
The Conservatives retained control of the council last May, but a different leadership was put in place.
Mr Speechley's successor, Ian Croft (Con), was due to appear before the Adjudication Panel for England this week to answer allegations that he has brought his office into disrepute.