I've said it before. The squad should be a mix of young players and experienced players, but we already have an ageing core and adding a 30 year old for that much money who has never had a consistent run in his career is a travesty.
Experienced players don't need to be players approaching the end of their top level career.
Coutinho is an experienced player.
You buy young players for what they could be, their potential of their record getting better, them getting better.
You don't sign a fucking 30 year old whose entire career been around those numbers and expect him to get much better just because he's gonna play for Barca. When you're at that age you're past the significant improvement stage.
Like Arda Turan.