This study is on the impact of agile methodology on project team dynamics in MTN, a mobile telecommunication firm in Nigeria. The study adopted the survey research design methodology and was circumspective in the process. Primary method of data collection, specifically the use of questionnaire was employed in the collection of data used in the study. The Partial Least Square Structural Equation Model (PLS-SEM) was used inanalysing the data extracted from 155 respondents that also formed the population of the study. The findings and conclusion in this study include, that agile methodology has significant effect on project team dynamics viz: - team collaboration, team communication, and team motivation. The study supports and recommends that project managers and by extension, organizations should focus and direct attention toward project team dynamics by promoting the spirit of cooperation and open communication among project teams members. This is achievable by supporting regular team meetings, giving team members the chance to offer comments, suggestions, and opinions, as well asparticularly encouraging openness among team members and in project managementin general. Deliberate attempt and effort in building respect and trust amongst team members should be given priority as respect and trust among team members are crucial and vital components in effective communication and collaboration. Project managers are admonishedto place priority on team involvement, communication, collaboration,and motivation.