The entire Sydney team played poorly after quarter time, including Warner. But before that, they finished top of the ladder and he was AA.
Pickett is a premiership player but Melbourne's team in 2021 was centred around Gawn, Trac, Viney, Oliver, Jackson & Brayshaw, with Lever & May in the backline and Brown & Fritch in the forward line. They would have won without Pickett in the squad. He didn't kick a goal in the GF & is not going to make Freo better compared to Warner.
Besides, we just got Bolton. Walters is already under pressure because of him, so who else is going out of the half-forward line to accommodate Pickett: Frederick, Switta, Sturt?