I think Reuter and Calixte split time the majority of the season. Kier is our best defender, so it's hard for me to imagine him going to the bench. It will be interesting to see how much Calixte and Reuter play together on the overseas trip though.
Also, I'm sure the people going to the open practice tomorrow night will be able to confirm this, but I believe Grayer is still in a hard cast.
Javon Greene became our best defender by the end of the season, actually. But I also think it would be hard to keep Kier on the bench considering what he gives us in terms of a secondary ball carrier, defender, and ability to get to the rim and draw fouls. I also don't know how effective Mar would be as a small forward, so I'm wary of putting him there.
Grayer's injury isn't serious enough to consider he'd miss part of or all of the next season, is it? I mean, it isn't even July yet and we're 5 months away from the start of the season, 4 months from the start of regular practice.
If the starting lineup goes: Otis, Kier, Grayer, Mar, Reuter and if Reuter is able to step out and make 3s, as Paulsen suggested in his interview with Petey, and Mar has gotten stronger in the offseason (as I'm sure he will) I don't think anyone could complain about that.
I do hope Paulsen adds "big" lineup option to the "small" lineup we've been playing with if the team is struggling against bigger lineups.
All of this is to say that I think either Hartwell or Miller could be red-shirted and I wouldn't mind given who we have coming back in the backcourt, meaning (to answer the original question) I don't have a problem using Kier as a starting PG his senior season and having either JDS or Greene start at the 2 and giving Hartwell two years to grow into the role and still have 3 years of potentially starting after Kier graduates; Miller on the other hand sounds like he's closer to Kier than he is to Grayer and so he could use a year to work on his 3-point shooting without sitting behind a ton of guards his freshman year.
What also excites me about next year's team is we haven't even talked about Boyd or AJ yet, and both of those players have given us some important minutes last year in some big games for us.