please answer questions 2.1&2.5 with a paragraph supporting your answer.

2-5 Can a company be successful at project management without having or using a project management methodology? Who determines how many life-cycle phases should be part of a project management 2-1 Do you think that someone could be a good systems manager but a poor project manager? What about the reverse situation State any assumptions that you may have to make. 2-2 For each of the following projects, state whether we are discussing an open, closed, or cxtended system