Maybe something like-
PG- Kirts, Zanin
SG- Barnes, Haase
SF - Fredericks, Hill , Aug
PF- Marshall, Welk
C- Meyers, Whitworth
I moved Zanin to backup PG since he's got decent ball skills and he's only a FR with bad IQ so you don't really want him starting unless you have to. Barnes is an upperclassmen with good spd, ath, def but not great ball skills. But his ath/spd/def/iq wins out over haas.
Hill's bh/pass is horrible even for a SF. he has good ath/def so he has some value but that's why i'd prefer him off the bench and give the Freddy more PT since he's all around better.
Honestly your bigs are pretty weak. Marshall's 29 ath is way too low for a PF. Definitely try to get that up next recruiting class. Try to get bigs with at least 50 ath/def. Your guys do have some good LP so they will score well against mediocre teams but the ath will hold them back against good teams I bet.