In my opinion, Olson is a very diversified offensive player who is an attacking wing. If she reminds me of anyone, it's a more physical Payton Verhulst/Sonia Citron..
Addy Brown reminds me of Leigha Brown, who was a workmanlike forward for Nebraska and Michigan. Solid, did dirty work, then would score when necessary.
She's from Kansas, but I have no idea if she'll want to return home. She always expressed how much she liked it at Iowa State, so if she's leaving, my guess is she'll go somewhere where she can win and develop her game. I would think of a whole lot of schools that would welcome her to round out a team. Rather than Michigan, I think she'd find more of a role on two other B1G teams that start with M: Michigan State or Minnesota.