They need a top rate post player to come in and replace Turner. Even without Walker/Westbrook, they still have Ogunbowale, Mabrey and Young on the wings. Their best shooter is 6-2 Erin Boley who will likely man the 4 spot. Those are all elite players who could become All-Americans over their career. They also have Patberg at the PG spot for 4 years. What they need is a standout post player to be a shot blocker/finisher inside. Vaughn and Patterson are good gets, but I don't anticipate they'll make the impact Turner has. 2018 is very post heavy, so there will be some great players to go after including Olivia Nelson-Ododa, Shakira Austin, Charlie Collier, and NaLyssa Smith. Not sure who ND is involved with.
I'm also shocked they are not in Sidney Cooks's final 5. Cook is a great prospect as a versatile 4, and she's considering a slew of medicore Big Ten programs and UCLA. If she went to Notre Dame she'd have a chance to be an impact player to help them win a title.