I've definitely experienced problems with team members in the past. My previous position, I was an escalations supervisor, so not only did I have to deal with members of my own team, I had to deal with the customer as well, too. I wasn't a manager, but prior to the customer speaking to a manager, they had to speak to me first. In regard to team members, there's a right way and a wrong way to speak to someone. If you approach someone with the right type of attitude, you can get your point across without having any problems with anybody and hopefully come to some type of a conclusion in getting that resolved.