Nobody!
John Mozeliak, the GM of the St. Louis Cardinals, now says that the Cards are not trading Nolan Arenado… and maybe they aren’t. However, don’t believe anything any MLB baseball executive tells you. PERIOD! Nolan has five years and $144MM remaining on his contract and could likely have beaten that deal if he noted out of his contract… but he did not! Arenado and the Cardinals seem to have a good relationship, and he seems happy there.
What about him allegedly waiving his no-trade clause? The report on the talks with the Dodgers indicated he was willing to accept a deal only to the Dodgers, having always wanted to play for them as a Southern California native.