Tactical help from my fellow coaches

Hi everyone I would appreciate some advice on tactics and the issue I seem to have.
My team seems to be full of good outside shooters. The default tactics were predominantly 5 out which looking at the stats I agreed with. However my 3 point shooting in actual games is atrocious. Is there anything I should be thinking about that will assist with the tactics. I am using about 20% practice time allocated to 5 out. Should I be doing more? I did notice that a lot of my 3 point attempts were taken by the one player (centre) who has the lowest attribute so I was wondering if I could focus the passing to different shooters somehow like my guards.
I understand that without seeing my team direct advice cannot be given but I'm looking for a more general understanding as I'm new to the game and fairly new to basketball. Any advice would be greatly appreciated.
My team seems to be full of good outside shooters. The default tactics were predominantly 5 out which looking at the stats I agreed with. However my 3 point shooting in actual games is atrocious. Is there anything I should be thinking about that will assist with the tactics. I am using about 20% practice time allocated to 5 out. Should I be doing more? I did notice that a lot of my 3 point attempts were taken by the one player (centre) who has the lowest attribute so I was wondering if I could focus the passing to different shooters somehow like my guards.
I understand that without seeing my team direct advice cannot be given but I'm looking for a more general understanding as I'm new to the game and fairly new to basketball. Any advice would be greatly appreciated.