I have intermediate project management knowledge. I became a project manager for 2 software deployment projects for a company.
One of the projects is towards the end as we get close to deployment and in the other we are in the preparation of the testing phase.
I feel totally lost not knowing where to start and what to do. For example, some of the issues I face now is that everyone from infrastructure team and security team are saying "this is not my job" and I'm not sure how to manage that. Do I have to prepare and explain things for them in detail or shall I invite one member of their teams to join meetings with the vendor?
I don't have good security and infrastructure experience.
Is there a certain procedure I can follow to successfully deploy both systems?