Michael Gove has said that the decision to replace Baroness Morgan was "absolutely my decision" and did not come from Number 10.
More top news
Teachers and managers in particularly are putting in hundreds of hours of overtime free of charge.
Labour have lost the Copeland by-election, a seat they had held since 1983, as the Conservatives edged the vote by 2,000 votes.
Labour have held onto the crucial seat of Stoke-on-Trent, brushing aside UKIP leader Paul Nuttall in the process.