Last week, the work and pensions secretary, Iain Duncan Smith resigned from the cabinet, and was swiftly replaced by Stephen Crabb. Duncan Smith cited the government budget, set out by George Osborne, as the reason for his resignation - but what's all the fuss about?The budget promised that the funding for sport in primary schools would double, which would be paid for by a tax on soft drinks, every school will become an academy by 2022, Crossrail 2 would be given £80 million t [...]