To be honest, the best move for Team Liquid would be to get Scream. He can play all 3 roles. "Yay" only plays Chamber and Jett. Jett has been nerfed and the meta will be in the hands of agents like Raze. Scream plays Raze really well. "Yay" is actually a sentinel flex. He said that he will play in the partner league this season, the reporters know where he will go and he sent team liquid with some music (I'm not sure) so everyone thought that the broadcast would go to TL, but as I said above, this is not possible.
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