Since that time, Tracey has held posts in economic policy and transport policy, as well as a wider strategic role across the Economy, Skills and Natural Resources Group.
Ers hynny, bu gan Tracey swyddi mewn polisi economaidd a pholisi trafnidiaeth, yn ogystal â rôl strategol ehangach ar draws Grŵp yr Economi, Sgiliau a Chyfoeth Naturiol.