There is no need to emulate this real life feature here. It doesn't add anything to the game.
It adds this little element that some people like to call "strategy".
Argue all you want, injuries are a part of this game and aren't going anywhere.
Sorry, but there is very little "strategy" involved in injuries. The most you can do is to hire an expensive doctor, but even if you do this you can have many players injured at the same time.
So the only "strategy" available is to build the best possible roster and
pray.
Even if you have a balanced roster with good backups if your key players get injured your good backups won't perform the same as the key players. Backups are backups, and good backups should be good enough to play at a good level for 10-15 minutes while starters do the job for the rest.
Even if you have a balanced roster if God/ramdom decides that your key players shouldn't play you are doomed. And it sucks big time.
Now I have my 2 key players injured and that lead me to lose the 1st playoff final game playing at home. My opponent has a very good team and deserves to be in the finals, but did he win because he was a better strategist than me? No,
he won because he was luckier
than me. And this
sucks.
It
sucks because those injuries are not a matter of 1 or 2 weeks. They are a matter of more than 150 weeks, since I play buzzerbeater since at least november 2007 and finally I had achieved my goal of being dominant (at the cost of lots of planning and
strategy) at the National League.
But, you know, if the BBs think that it's OK to make the managers who play their game angry and wanting to leave that's up to them.