The independent Getting it Right First Time (GIRFT) and Ministerial Advisory Group on NHS Performance and Productivity report have both underscored the need for change.
Mae adroddiad annibynnol Getting it Right First Time (GIRFT) a hefyd y Grŵp Cynghori Gweinidogol ar Berfformiad a Chynhyrchiant y GIG wedi ategu'r angen i newid.