mmm I will talk to you about your squad judging on what I see (not the skills)
first of all I would try to find a good SG.... you have two that are both 33 years old , 34 next season and they are ready to start poping down (I don't know how fast they do , but they will start eventually)
so just sell one... and get a SG for starter...
second step for improvement I would buy a PG (maybe better than the german) and sell the two that have 2k wage...
and finally I would try to stabilize the trainees.... meaning that I would train each week the same (4-5-6 how many you think you can) in that way you will see better results coming from training...
so saying that you train Forwards and Centers... maybe think of either replacing the Croatian or you will miss training minutes for nothing
those said... I have to remind you that you knwo your team better than anyone and you are the one to take the final decisions...
I hope I helped