You're using a 3-guard lineup but aren't letting them shoot from the perimeter, which is the main advantage to having 3 guards. Your team has only attempted 4 outside shots/game.  I suspect you have the guards set at -1 or -2.   I'd set the guards at 'O' for 3-point shooting.   So, you're not getting the benefit of the guards while, simutaneously, it's hurting your rebounding.  Neither of your two best rebounder ratings are even starting.

I'd give this lineup a try and see if you improve your rebounding and outside shooting:

Peterson
Albert
Dickerson
Dudley
Smith