According to the PMBOKGuide, the project manager is responsible for managing the project changes and ensuring that they are aligned with the project objectives and stakeholder expectations. Therefore, the project manager should evaluate the impact of the decision to switch from a cloud-based system to a dial-up service on the project scope, schedule, cost, quality, risk, and communication. The project manager should then communicate the impact analysis and the potential alternatives to the management and seek their approval or guidance. Agreeing with management and continuing working the project management plan may not be the best option, as it may result in poor project performance, stakeholder dissatisfaction, or ethical issues. The project manager should not blindly accept the decision without analyzing its consequences and exploring other options. Meeting with management about their decision and asking them to get another project manager may be unprofessional and irresponsible. The project manager should not abandon the project or escalate the issue without trying to resolve it first. Replacing some of the team members that work virtually to help the company save money may not be feasible or desirable. The project manager should consider the impact of losing valuable team members, the cost and time of hiring and training new ones, and the effect on the team morale and productivity. References: PMBOKGuide, Sixth Edition, Chapter 4, Section 4.6 (Perform Integrated Change Control) and Chapter 13, Section 13.3.2.4 (Project Manager)