There is really not much more for them to use this year. The size will be an issue on both the O-line and d-line. Size is overrated on the D-line. I would much rather have a little undersized group there that is quick, strong and can move, than a big line that is less agile and cannot chase plays down.
Poland is a team that will come right at you and punch you in the mouth if you are not physical, and I saw that last year at the beginning of the scrimmage with Poland. Green wasn't quite ready for the physical play, but after a series, they settled in. I still think Green can have a solid team, 7-3, 6-4.