I agree with that, he's got some issues to resolve but the deceptive nature of his pace and how straight he gets the seam (so you get movement off the pitch) will see him get a lot of wickets and have the added benefit of making him hard to get away so his economy will be naturally good as well.
What he needs to work on is bowling more wicket-taking deliveries (Anderson had a similar problem when he came through), in English conditions that means being a bit fuller and getting people driving him where the seam movement will lead to edges on both sides of the bat. He also needs to be a bit bolder in bowling over the wicket to lefties, he's been very quick to change sides so far but because he hugs the stumps he can bowl almost wicket-to-wicket against them.