I don't like cricket...

Ok, I do like it.

I don't know a lot about it though, but I was pretty sure that the book on James Anderson was that he bowled a consistent line and length when fit, but that it wasn't a wicket taking line/length combination. 5 wickets in this innings so far seems to suggest that either:

The book is lying
He has changed something
The wicket is ideal

As I say, I don't know enough to pull an actual conclusion out.