Thanks for the feedback everyone. Especially some insight from oldresorter, the new cross-town, in conference, in division rival. This is a fun little puzzle, and a very good problem to have.
How to play the weaker 2 guards (Peterson and Stacy) is one of the bigger concerns I'm going to try to solve with experimenting. I look at them as close to equal, but Peterson with the Athleticism and Stacy with the Passing. The difference in IQ is also a consideration. If Stacy complains for not getting enough playing time that will impact the decision since either way this is Peterson's last season.
The main 3 guards will clearly be Davis as a starter with Tessier and Tucker also getting as many minutes as possible. I still have no idea how I'd like to sort this out.
Backup SF is also questionable for me still. Playing the FR. or one of the other Gs.
I'm pretty much sold on using my 4 bigs to fill the PF and C spots.
Keep sharing if you'd like, I've got about 12 days to sort this out, hopefully sooner rather than that though.