In a company setting, working with someone you have a good relationship with always does helps tasks move faster to get things done, but I do not believe you should look away at an individual who may be more competent but you may not get a long with them. In a company, everybody is a professional and would act as such. In the end, you are all working to the same end goal of putting a medical device out on market so everybody is a team member. I also believe, that this situation does occur from time to time where individuals may not get a long with one another but that is up to the Project Manager and other team members, as well, to not let that distract the team from accomplishing the project or task.