Sterling can play as a striker in his sleep:
His movement is great, he's quick, he's strong, his finishing varies depending on his confidence but that can and will improve
No worries about it reducing his ability to pick the ball up in deeper areas, certainly didnt hinder Suarez in that aspect, he isnt playing as a typical number 9, he is almost playing a free role at the top end, to go where he wants, his football brain is good enough to play this role.
When markovic crossed that ball to Henderson, Sterling was already on the move.....that was a goal of a striker if ever there was one.
But equally when Sturridge is back...Sterling could easily play as a Right wing back...imagine Marko left & Sterling right...all out attack, not saying thats where he should play by any means...the depth of marko, lallana, Sterling & Coutinho...plus Ibe is fantastic...we certainly dont need to be looking to sell any of them, they can all get plenty of games