[Firmino]

For players to improve and become a better player there are two area of focus. First they must have a good manager / coach and next is to be constantly playing along established players.

The problem with Liverpool is that some players are still developing while a very small group are at the stage where they are about to peak.

This is the reason teams such as Barcelona, Real Madrid or Bayern Munich try their best to sign great players. This ensures their starting 11 are the best and ready to compete on all fronts.