I have Aaron Rodgers for my starting QB in 2 fantasy teams. This week is toast as he went down in the first quarter. Now, I must use my backup QB's in those leagues for the future. Green Bay is in trouble without Rodgers. And so am I.
Quarterback is the easiest position to recover from an injury, in my opinion. You may be able to pick someone up on waivers and only miss out on 5 or so points per week.
Some of my draft picks this season:
David Johnson
Greg Olson
Darren Sproles
Jordan Matthews
Chris Carson
Emmanuel Sanders