HM Treasury and Cabinet Office have identified a range of barriers to effective cross-government working. The most commonly identified barriers included: structures 7 Q 44; C&AG’s Report para 5 8 Q 1; C&AG’s Report para 6 9 C&AG’s Report para 1.4, Figure 2 10 Q 49; C&AG’s Report para 1.4 11 Qq 2, 38, 45 -46 12 Qq 45, 46 13 Q 2 14 Qq 46, 82 15 Q 38 16 Q 48; C&AG’s Report para 11 17 Q 47 Cross-government working 9 and bureaucracy hindering planning and delivery; ministerial priorities not being well understood; inconsistent join-up in spending decisions and allocations; a lack of routine data sharing between Departments; and poor arrangements for sharing best practice and learning.18