Lists work well as long as you're comfortable with what you're sending in.
Example: I've seen lists for people who had multiple picks on one round, or were going to miss more than one round that went:
Option 1:
Pick 1**:
Player A
Player B
Pick 2:
Player C, PLayer D
**If player A and B are not there, please go on to Option 2.
Option 2:
Pick 1:
Player C
Player D
PPlayer E
Pick 2:
Player D
Player F
Player G
You can make it as complicated as you want as long as you trust the person you're sending it to, and they're cool with the responserbility.