How my best 2 inside shootes in the game had taken toghter less shoots then anyone of the other 3 players?(1 of them had taken like both of them the other 2 took more shoots then both each!)
Let's take the minutes out of the discussion, since the three "bad shooters" played full game. Per min, the stats are:
0.24 (only 0.19 from PF taking the bench into account!)
0.38 (0.38 throughout the game from C)
0.52
0.60
0.67
Just looking at the numbers, this seems like a typical case of having trouble getting the ball to the big guys. And the match report
(49555334) corresponds to that. The problem is typically the skill distribution of your guards, although the opponent can obviously also affect the outcome. I looked at your relegation series and about half a dozen random league games from last season. You seem to run a lot of outside offenses. If you were using pretty much the same players (especially guards) now, the skill distribution may really be the problem you are seeing.
Is this a bug or the programing is doing more then what the game manual says?
The game engine is very complex. What the players try to do (according to your tactics) may not quite work due to poor lineup etc. I am no expert of the isolation tactics, but every time I see things like your SG going 0-12 (and he was 50-167 last season) from the three-point line, I would try and analyze the player skills and how they fit to the tactics. It looks your guards are forced to take bad shots, since they can't get the ball to the bigs.