These would be my thoughts to circumvent the issue of a player withdrawing in a PL week (late):
1) If a player withdraws late, anyone who picks them, is automatically given their opponent (eg - Those who had Price, are given Cullen straight up)
2) Captains - 2 Thoughts - Either we all give a VC whom, like fantasy football etc, comes on as captain… and/or, if no VC is given, the player automatically gets the lowest ranked player they picked as VC (not including the substitute).
Just my thoughts though.