Substitute Players?

SNN beat Juventus today 12-1.

The reason for the lop-sided score was that Juventus
did not have enough players, only 6 or 7.
They played well, but if they went on the offensive and
lost the ball, their defenders were quickly out-numbered.
If they had most of their players on defense and passed
downfield, their forwards were out-numbered.

I was thinking it might be helpful if there was a pool of substitute players
that teams that were short of players could draw from.
I'm sure there are many people who would like to play
on teams but do not have the time to commit to regular games and practices.

It would make the games more competitive and scores more realistic.