I would have to agree with gtmsnba13. I have noticed that a player does tend to perform better when he has the captain's armband! I also had a Centre Midfielder (a young player) since League 1 who was my captain for 3.5 seasons, and each game he would put in a 'captain's performance' and rate highly. And he isn't the highest rated player in my team. Also at Level 4, I had a scout Left Midfielder whose performances are quite average at best, but plays better and scores more when he is captain. Could just be a coincidence, but I have noticed it makes a difference.