The Faculty of Engineering at the University of Ottawa is home to multiple rapid prototyping facilities and entrepreneurship spaces. These include a makerspace, a machine shop and a design space for any student to use free of charge. First- and second-year students also take courses in the Makerlab, a sister facility to the Makerspace, that introduces them to collaborative project-based learning, engineering problem-solving and prototyping in a cornerstone design course. Each three-hour weekly lab has a teaching assistant (TA), typically a graduate student, and a project manager (PM), typically an undergraduate student who has taken the course previously. They are responsible for teaching the lab content and guiding the students through their design process. Since design courses are weighted heavily toward projects and labs, this evidence-based practice paper is part of a study that has the goal of understanding, via student evaluations, the impact of TA and PM training on their performance. This paper presents an analysis of the impact of TA and PM training, based on the students’ evaluation of their TA’s and PM’s performance. Factors considered were the amount of training received by the TAs and PMs, the type of training and the satisfaction of the students. The students were surveyed to gauge their satisfaction with the quality of their TAs and PMs, and the survey results were compared with a number of outcomes.