I am currently drafting a critical analysis, evaluating the performance of a project I was involved in. One team member on the project was, for lack of a better word, winging it.
They did not understand what their role required and did not follow any established theories, methodologies or principles to achieve their role. They simply turned up each day hoping for the best.
I do not wish to use the phrase "winging it" in my report; is there perhaps a more formal equivalent that I could use or, if not, a formally succinct way to say the same thing?