Yep, Real Madrid looks stronger with some new players and the new coach (Xabi Alonso). Sure, there is no guarantee to win the La Liga trophy or Copa Del Rey Trophy. I even assume Xabi and some Real Madrid players are still adapting with their new game style. So, it won't be easy to win all the matches consistently. Even, according to the pre-season matches, Real Madrid defense looked still need some improvement and a better teamwork.
Real Madrid still doesn't seem strong enough. They certainly played well in the pre-season match, but that performance won't be enough to win any title. The new players and the new coach haven't yet adapted to the team and haven't started their natural performance. Although consistency will be a bit difficult for them at the beginning, when they can adapt to the team, they will definitely do well. There is no guarantee of winning any kind of title yet, consistency is needed to win the title, which is not guaranteed with any team. Real Madrid still has more to work on and Xabi Alonso has to adapt to his team and the players.