It will be interesting to watch this team grow over the course of the year and see the rotations develop. You're replacing about 37 PPG from last year's rotation (Nate, Gray, Seth, Okonkwo) that is going to have to come from some internal growth from returning players and/or the combo of the Mahaffeys, Head, Stankovic, and Barre.
Eric Mahaffey was apparently going to start as a true freshman last year, so that certainly suggests Groce viewing him very highly.
I think Evan probably gives you modest offensive production along with elite defense.
I know very little of Cody, but @clarkwgriswold mentioned the coaches really like him. He may be an important scorer off the bench.
I've heard enough good things about Barre to believe he can be an energy big who chips in a few points around the rim.
Stankovic is kind of the wild card to me. His size and skill suggests he could be an offensive mismatch against many teams.
I'm excited to see it all unfold. The journey of the season is the most enjoyable part of being a fan, seeing where we start vs where we finish.