Here's the way I look at it...

We have Shepard and Turner starting in the front court with Vaughn and Patterson backing them up. That gives plenty of time for Cosgrove to mature as a freshman at her own pace this year. Whatever she contributes as a freshman is just "gravy" IMO. She doesn't have to be forced into the games before she's ready like Patterson was last year. If she's ready to play and gets in quite a bit, great. If she needs a year to learn to adjust to the game (as most freshman front court players generally do), that's fine as well.