So we will need to see Liverpool play another club and Chelsea play another club for we to know if they have really improved.
The first games are always tricky and it is difficult to know how stable the teams are. With new players requiring time to adapt to the team and to the strategy used, things gonna improve later.
Liverpool will face Bournemouth in the next round so a victory should occur or else it will be a bad start for them. Chelsea will face West Ham which isn't that easy so they will have to show their best to win.
Tottenham Hotspur - Manchester United and Manchester City - Newcastle are the best matches this weekend.
Every team in the Premier League is a very tough opponent against each other. No match is ever easy for a Premier League side. Good things can only be achieved by performing the best against the best. Every Premier League team has already completed one match. Every team has performed their best in Premier League first match against each team where some team has success and some team has not success in first match. Every team is once again preparing for their next match, the teams that did well in the first match are planning how to do better in the next matches and the teams that did not perform as expected in the first match are finding their mistakes and trying to improve in the next match. If every Premier League match is more exciting, we will enjoy watching the game more than expected.