In Settling Disputes, what is the Role of Cabinet? -How else can this Government Function be carried out?

-Cabinet has Heads of Departments compromise and Debate on Policy Positions ie Funding. Scraping the Educational Maintainece Allowance for 6th Form Students was Agreed in 2010-2015 Coalition when there was More Funding provided for it -Disputes can be Resolved elsewhere ie Bilateral Meetings between Individual Cabinet members and the PM. May and the Chancellor Philip Hammond had Tense Convo regarding the Scrapping the Rise in National Insurance Contributions