Consistency may be 4, for sure. He is even able to make a great half-time and and then sucks on the other half! It seems to be lack of commitment.
I'm not sure about switching to *Tactical Dribble, but it seems to be the case upon arrival at Grêmio.
I have doubts about his weight. But no way he's only 66 pounds! He is not so thin. There are dubious information about it. Two other sites mentioning 72kg and 75Kg. I believe he is around 72.http://www.zerozero.pt/jogador.php?id=5227https://goal.com/br/people/brazil/22593/douglas
My suggestion is to increase balance to 77. He is not very strong, but not SO weak and sometimes protects the ball fairly well.
I also think that his technique is higher. He keeps the ball very close to the foot. I have used 87 in TECH.