I've been impressed with Schade, but I feel against the Bulldogs with Roughead injured, Tom Boyd will play a fair bit in the ruck, leaving them with a fairly short forward line(Cloke and Crameri the only 190cm+ players). On that basis I'd see more value for this matchup in taking an extra small/mid size player.
I noticed in JLT 3 that schadey schaded a few of the smaller/medium tigers in def50,at one point he was on prestia, another on castagna and even a bit on Dustin Martin. Perhaps he is seen by the coaches as the type that can play on the smalls to talls (maybe not the Hawkins type) and use his height to defend well against any pressured entries when the ball comes in high.
Could be a parallel to the slightly built Dustin fletcher although I think there styles are different?