Fel y nodir yn llythyr y Prif Weinidog at Arweinwyr yr awdurdodau lleol, rhaid i'r pecyn cyllido gwell hwn gael ei gyplysu gan ymrwymiad gan yr awdurdodau lleol i weithio rhanbarthol, er enghraifft gyda byrddau iechyd a'r consortia addysg, i sicrhau canlyniadau gwell a mwy o gadernid, ac ymrwymiad newydd i ysbryd a llythyren telerau ac amodau'r Gweithgor Llywodraeth Leol.
As set out in the First Minister’s letter to local authority Leaders, this improved package of funding must be matched by a commitment from local authorities to regional working, for example with health boards and the education consortia, to secure improved outcomes and increased resilience, and a re-commitment to the spirit and the letter of the terms and conditions of the Working Group on Local Government.