The thing about Manu Garcia imo, is that he probably has to start creating/scoring goals regularly at some point in order to merit a job at a club like City. We have arguments about whether players such as Nasri merit their place. Nasri was a real top talent as a kid & still is now. The question is always about his role in the team & whether he does enough to merit it, rather than his ability. It's unlikely Manu will become a ballwinner & he's small in stature so he has to become a creative mastermind or be a squad player to fill in.
That is the challenge for M Garcia imo. We can already see Diaz for instance, threatening to do all that kind of stuff. Garcia when he first arrived, showed a lot of tricky stuff around the penalty area, so it's in there.
I think there was hugely promising signs with his involvement in the goal and his willingness to turn and run at the defence. That shot he tried to get away too. Overall though I agree. I think he can get there though, its clear he has the ability to.