The intention had been that a review of India's constitutional arrangements would be held ten years on from the 1919 Act. In the event, the review was conducted ahead of time by the Simon Commission, whose report proposed the scrapping of dyarchy, and the introduction of a much larger degree of responsible government in the provinces. This proposal was controversial in Britain, demonstrating the rapidly widening gulf between British and Indian opinions as to the desirability, extent, and the speed of progress towards, the promised system of self-government contained in the 1919 Act's preamble.