You are correct, Japan didn't create a lot of scoring opportunities, in part because of the way we were playing. You could see it in the Japanese players' faces...they were downright bewildered at some points. I maintain that if we had coughed up the ball to Japan as easily and frequently as we did to Brazil, France and Sweden, they would have taken full advantage...they didn't create as many opportunities because we didn't give them as many opportunities to create.
As for Alex Morgan, she was very impressive with her speed and goal-scoring ability, and what she was doing seemed to be working well. The other half of that equation, though, is that in order to use a player's speed to create those breakaway goals, you have to create space for her to run in...
...which requires drawing the defense out away from their goal...
...which requires...
...possession in another part of the field.
Keep banging the ball deep every time, then that's where the defense stays, and there's no running room for an Alex Morgan to get a step ahead of the defenders. Drawing them up with possession and THEN sending the ball deep to Morgan is a pretty good one-two punch.
