We all hope this kid turns out to be a gem but it's very doubtful when you look at our track record over the past 9 years. You can't blame people for being skeptical.
Also, I highly doubt Wenger will buy another striker whilst we still have Giroud, Pod, Walcott and Gervinho as options. He's probably going to tinker with new positions during the pre-season and see what combos work well. As much as we talk about spending money this summer, Wenger likes to give players too many chances and I'm pretty sure he'll convince himself that Giroud and Pod will be better next year once they've adapted to the league.
The same goes for the midfield. Ramsey is showing promise and he's frozen Coquelin out just to keep Ramsey playing, Wilshere isn't getting dropped, Cazorla has had a good season....Wenger will have to make some major calls in the summer. He will have to drop a big earner to the bench and I just don't see that happening unless there are major injuries or sales.