Jam's up to his usual trolling, derailing topics, personal attacks, etc.
As for the Silva and Sterling comparison? They aren't the same type of player. Sterling's value is in his physical abilities. He can run fast and he can run fast often, which fits the style of football City plays. He maintains width, makes routinely dangerous vertical runs off the ball, almost like an advanced striker who plays off the shoulder of the last defender, and his speed and stamina are hugely valuable in City's pressing schemes.
Silva is a different player altogether, an inverted RW who likes to cut in on his left ala Di Maria and Robben. He isn't special physically, his value comes from his ability to play in tight spaces, hold up the ball and act as the lynchpin of a teams attack through his creative abilities. He's also a versatile player in that he can play on the wing or as a AM or CM. He will eventually replace David Silva's role in the team.