You have been appointed a project manager for a major software products company

You have been appointed a project manager for a major software products company. Your job is to manage the development of the next-generation version of its widely used mobile fitness app. Because competition is intense, tight deadlines have been established and announced. What team structure would you choose and why? What software process model(s) would you choose and why?
Outline your plan addressing these issues and other issues.
Need 6-8 pages with introduction and conclusion included. Must include a minimum of 9 peer-reviewed sources. No AI work.