We employed agent-based simulation techniques to create a dynamic multi-level team environment to study communication activities as knowledge sharing occurred. We examined knowledge seekers and knowledge providers who act and react to one another’s communication behavior on Waterfall versus Agile teams using rich versus lean media to answer research questions regarding inefficient use of team members. The simulation model was checked for validity against assumptions that project management method drives project schedule and communication media motivates the number of meetings. Results further indicate that (a) slightly more knowledge seekers exceed their knowledge need on Agile teams using lean versus rich media; (b) knowledge overage was reduced by utilizing a Waterfall rather than Agile method, and through the use of lean media; and (c) the maximum time wasted by team members who completed gathering knowledge to meet their initial needs was on Agile teams using lean media.