He's not going to have mastered the playbook in 10 days. He may have some operational knowledge and be able to run some of the routes, but he's going to be operating on instinct for awhile.
But, this is the kind of talk we hear from players and coaches in matters like these.
If we heard: "Well I won't be able to do a lot of it for at least a month or more", nobody would like it.
