I just read through this and I have some thoughts
Harris is your best player by far, and should be dealt with as so, he is the only one on your team with a respectable defense and ATH and he also has the best passing and his LP will allow him to score on guards and forwards- get him as much minutes as possible. He has a stamina of 60 so that might be an issue but defiantly start him and make him on the tired setting.
Giving everyone 0's can be a good idea if you have no good offensive options on your team that you want to get the ball in the hands of. I ran it with my Rutgers at Newark team and had success, I think I went to the sweet sixteen that year. Darnocc started all of his seasons at 0's and switched it when it stopped working. His resume should show you he knows what he is talking about.
https://www.whatifsports.com/hd/TeamProfile/History.aspx?tid=3817
You don't have any offensive options that on my team I would consider an offensive option, you have some guys that are less terrible than others, but no actual good options.
A note on that, I ran it with fastbreak, I think Darnocc ran it with flex but I'm not positive, he also probably ran it with other offenses. You run motion, that is an offense where the ball is supposed to move a lot and get what the defense gives you, which is good for the 0
one thing that I can not stress enough is that ATH and DEF run this game, it is very rare to have a good team without it. Based on the ratings of the guys you have recruited, you have not focused on that enough.
Look at my RUN team, I don't have any guards this season with solid guard skills, but they have ATH and DEF so they do not hurt my team. My team is #2 right now in the conference tournament.
https://www.whatifsports.com/hd/PlayerHistory/Ratings.aspx?pid=3312180
this guy I consider to be the best D3 guard i have ever had, ratings wise at least. Notice he is low in stats that are not important for guards (REB/SB/LP). When I look at your team I see that most guys (I know you only recruited 4) are about the same in every rating. Just want to make sure you aren't looking at REB in your guards for example.
You are focusing too much on the stats, everything does not show up in the stats. A guy with good defense does not always show that in steals or blocks, he uses that defense to stop the other team from scoring but it's hard to look at that. You just have to play the best guys based on the ratings, and trust that they will give you the best output.
You are also pulling up stats from last year, players improve from season to season in ratings and IQ, and it especially shows in freshman and sometimes sophomores. Do not hold a players freshman stats against him in his sophomore or junior years, IQ goes from F to B in that time period which makes a HUGE difference.
I did did this all on my phone, so pardon me if thoughts are a little scattered or if there are mistakes.