I don't know but it really seems this is a season for the underdogs. Some few break throughs were achieved by some teams that we thought wouldn't have. Newcastle surprised us by beating Liverpool to win the Carling cup, Bologna shocked AC Milan and defeated them in the Coppa Italia final. Harry Kane ended his 16 years without a trophy to finally win one and add his name among trophy winners. Crystal Palace against all odds beat Manchester City to lift their first ever major trophy, Son finally lifted his first ever trophy with Tottenham after so many years of waiting. Season of the underdogs, well expect Bayern Munich, lol.
That is to say that football is full of surprises and is sometimes so unpredictable. No team remains champions forever; another team you never thought could win can shock everyone. Just like this season in the Premier League, no one ever thought Manchester City would be in the position they are in, and no one ever thought Liverpool would be at the top this season.
It is important to always understand that your favorite team, even when at the top, can perform very poorly, which is not expected. That is why it is good not to take football so personally; just enjoy it at all times.