Do you expect your WPF developers to know expression blend?
Any good resources for learning more about Blend?
[UPDATE] Does knowing blend make you more productive?
I found Blend a great way to ease into XAML. Many of the common things you want to do are easy in Blend, especially databinding. Databinding has no intellisense and I found doing things in Blend a great way of discovering how do write the databinding syntax.
I now find myself mostly editing raw XAML buy hand.
The areas where blend is really handy: