Sterling's record at U18s and U21s was 14 goals in 36 games (33) starts . Goal every 2.5 games. Including NextGen it's 15 in 44, or just under 1 in 3. If you include the youth cup I think it works out at 21 goals in 49 games. Goal every 2.3 game). I guarantee he's assisted more goals than he's scored at the lower levels. Probably a lot more, but I'm fucked if I'm going looking for Sterling's assist stats as a 15 year old in the U18s. It'll be a lot and more than Ibe's.
Sterling's defo ahead on the end product at the younger levels. I don't think it matters though. Ibe's built like a bull and is faster (for my money) than Sterling, especially carrying the ball over distance. He doesn't need to be as good as Sterling to provide a fairly scary opponent for tired defenders in the back end of games, or to be ready to get a few games here and there in the Carling Cup.
When you get players like Ibe they're probably going to have a good initial impact because not many defenders will have seen them, and they're super fast and fearless, then they'll probably go off the boil a bit. If he's up with the first team squad (which he seems to be) then it wouldn't surprise me if that's what Rodgers is after off him this year. He's probably got an advantage over Sterling when he came in - he's coming in to a better team and even if he's great we won't need to be relying on him early doors. Oh, and he's built like a man. Sterling has always been very slight (because he's always been playing well above his age group). Jordan Ibe's built like a rugby winger (not a Welsh one obviously, but nobody's perfect).