My best friend is Juve fan, so I know the situation about Juve very well.
Juve is having hard time about teams who play defensive because your forwards are not very good, especially when Quag is injured right now. Real Madrid won't play as defensive as us or Copenhagen but you need to get minimum 3 points from 2 matches against Real.
Let's come to Gala. Mancini replaced as coach but most fans don't like Mancini from start because he came right after Terim but Mancini's philosophy works better in CL than Terim. I don't really think Mancini can win league title with us because he plays defensive but defensive mentality works better in CL.
We will definitely beat Copenhagen at home. We will have over +15,000 fans in Denmark against Copenhagen, so win in Denmark is very likely. If we get 6 points from Copenhagen and if Juve lose 2 matches in a row against Real Madrid, I don't think Juve have any chance at all to qualify.
Cheers