Would this work to counter AFKers?

Have a formula set in place so when you have AFKers on your team, the enemy team has to end the game in a reasonable amount of time. If they cannot then the crippled team deserves to win. Because honestly winning a game missing 20% man power is quite difficult and rare to win. So give players some sort of incentive for working together to drag things out. Also, give the advantages team a challenge.

I am sure this can be reasonably done.