A Project Manager in an information technology project is discussing a complex algorithm with a new team member. After a long and thorough verbal discussion, the Project Manager asks if the team member understood the algorithm and can put it in the document. The team member implies that he has understood. However, when the Project Manager goes through the document, he realizes that the member didn't understand what was said thus resulting in an inefficient use of time and effort. Who is responsible for this loss of time, and how could it have been avoided?