You keep saying sub, like you're ordering a sandwich. Sub, sub. The guy is 18 years old, Pique is 31 as we speak. Being a substitute player for a season, bridging the gap and getting integrated into the first team is standard procedure for nearly all newcomers. The suggestion is flawless, but obviously your complete lack of cognitive skills and foresight blinds your already meagre understanding of the premis for my argument.
Vermaelen was a 'garbage' signing, due to his ridiculous history with injuries; we even signed him when he was injured. And where is he today? Oh year, injured. He is a decent player when not injured, which is like saying 'JamDav is intelligent, when not spewing negative, blatantly arrogant dismissals of other's opinions right and left' - Meaning 9.2 % of the time.
Paco is GREAT in those 2 games per year he gets. Paulinho was the only player on the list who has been somewhat succesful, due to a high amounts of goals; but he is turning 31 and in no way a 'STELLAR' signing for 40 mil. euros.
Lastly, we won't buy a sub for 70 mil. euros, dude WTF are you smoking? Apparently we just bought a sub for twice that amount in Dembélé. Zero of your lazy arguments holds water. FACT