yeah, swan outpointed him in a marking contest. what a surprise that a 200 game brownlow medalist outpointed a kid in a marking contest.
as for being sub, leppa said that the eagles used gaff repeatedly as a sub and that it kept him fresh for when they started giving him full games after about 2 months when the pace of the game stared to drop off.
They are basically following that model with him to "keep his legs fresh"