How do I lock free agents after the draft?

1. Disable game-start waivers. To do this, go to League >> Settings >> Edit Waiver Wire Rules and change the Use a Waiver Claim System to No.
2. Go to League >> Settings >> Edit Transaction Rules and select Locked, no adds are allowed for Free Agents During Preseason (After Draft).
3. All free agents will now be locked; no waivers will run.

Note: To unlock the player pool later in the preseason, simply utilize League » Settings » Unlock Free Agents During Preseason and then adjust your transaction and waiver wire rules as needed.