Agreed. Although Gordon wasn't good, he made decent runs at times and wasn't played in (Rice was guilty, ditto against Croatia), and often was left against 2 because Spence often looked like he was playing left of a back 3 rather than a full back. Any decent movement from him would have made life easier for Gordon.
Hopefully we'll see O'Reilly and Rashford down the left against Panama.
And why Shaw isn't there is anyone's guess.