If the opposition sit back and let you play passes in the defensive third, and you have players who can cope with doing that, especially when under pressure then thats how you play.
But from Spurs away onwards showed that if you press high and quick that several of our defensive players aren't up to playing their way out under pressure very well.
Other teams realised that, certain players of ours couldn't cope with the added pressure (both in terms of oppositon pressing and emotional pressure of not being disposessed), hence we weren't doing as well trying to play the same way as we were previous.
It's common sense really. And instead of persisting with us playing the same tactics when the opposition had changed theirs, we needed to change ours.
And if teams are pressing us high and we can't play out, we need to get the ball up the pitch quicker to leave them out of position. Plus, that suits several of our attacking players who like having space to run into with the ball.
It's not all about long ball or short ball, defensive thrid or final third.
It's about playing the best way with the players you have, taking into account how the opposition play and finding the best balance.