Again, let's not get hung up on positions. He's a GUARD. He can shoot. He isn't the most instinctive play maker or passer, but that can improve. As a combo guard, he'll be able to play alongside another combo guard like Goodine. Between the two of them, we'll be fine.
No question, he'll have to sharpen his skill set, just like 99% of all incoming frosh. If he's the hard working competitor he's reputed to be, then that's just what he'll do.
I always felt like GMac's offensive skill set was greatly enhanced by him being able to play with other great offensive players like Carmelo and Hak his freshman year. As the third or fourth scoring option, defenses couldn't key on him. I think it will be similar with a guy like Girard, who could be really effective as the team's third or fourth scorer, with other good players spacing the floor around him. The question in my mind is: will he prove to be a better defender than GMac, due to being a little bit stronger and hard nosed?