1) Killing TL completely is not the goal.
It does not kill the TL as I wrote and explained.
2) Currently there is a bit more transfers at the start of the season (draftees) and near playoffs (teams getting ready for playoff runs). TL pretty much is stagnant during the season and almost dies off after the deadline. What you are trying to do is only make it viable to trade during offseason.
No, instead of having two peeks and almost nothing at the other parts of a season, this will create that it will be more spreaded along the season, as teams (like in real BB) will make the adjustment not on a "single point" of the season, but along the all season.
3) "Team-Chemisty" should affect the player (via GS) and this affects the team, if you want to improve that GS you have to play that low GS player.
So?!? that is the cost of having a player that time of season.
And again, ther are other skills that can be affected in addition or instead.
4) This will drastically lower TL-activity during the season. This does nothing to spread it along the season.
Not true. As I wrote above.
5) We have no player contracts. Using salary per skills is the better option for this game. Thus we can't have it like in the real world.
BB has player contracts.
The contract is defined at the begining of each year, and upon the player's skills.
That way TL is pretty important to dump excess salary or improve your team. It's pointless to punish the team and the player the whole ongoing season. Lowering GS should be enough (as it affects all skills).
The affect is decreasing as the time passes. Exactly as it is in real BB world. The chemistry is being built, and the performance improved.
6) Old teams should not just get an advantage from staying stagnant or switching players only during preseason and then just avoid TL like a plague the whole season.
It's pointless to ruin the player for the whole season, just because you sign him during the season.
A) He is not "ruined".
His skills are not as good as if he would have been bought at the pre-season, but you can still buy players for improving the team.
B) The cost of not planing from the start of the season is (like in real-world) costly.
C) When you need to buy a player you will buy it.