Really, the Cubs need to keep playing well, or it will quickly become a 1-team race. The Brewers need to do the same; They don't have a big lead on the Cubs. They have a 5 game lead on the Cubs, and a 6-7 game lead on the rest of the division. It's not like there's a clear separation right now between the Cubs and the rest. There is, however, a clear separation between Milwaukee and the Cubs.
No quickness, no rebounding, no shooting, no ball movement, not taking care of the ball, not forcing turnover, no easy baskets, and down 13. If they can play any semblance of well, they'll win this series.
I never feel the game is safe until the Cubs require fewer outs to win the game than the opponent requires runs. So, with a 4 run lead, I feel safe going into the 9th.