Your CSM is a good resource for helping you match practice to feature when it isn't obvious. You can ask him open-ended questions and he'll use his deep product knowledge to offer suggestions and options. When there isn't something that directly matches your goals, he can raise it internally so it's on our radar when we're evaluating our priorities for the product.
I hear that Matthew is trouble though, watch out for him.
(I'm kidding; I talk to him nearly every day. )