What is the type of IT organizational structure Smith has in mind for her proposed strategy

Smith’s first step toward helping WestJet climb to the next level is to change its governance model. What is the type of IT organizational structure Smith has in mind for her proposed strategy – centralized, decentralized, or federalism. Why she chose this particular structure, specifying how it will help WestJet execute on its corporate strategy. In addition, list at least two of the risks associated with adopting this type of structure.