the Mets won't give up Syndergaard. he's their best pitcher. why give up him for an mediocre to average pitcher in Montgomery? the Mets really have no need to get in the trade. it'd make more sense just for a two way team trade.
I'd be OK with Happ, Almora, and Mongtomery though for Machado. but we still need more pitching. i really don't want to give up Russell. Baez maybe if we have too.
we also then would need to sign Machado to a long term deal. he's only 25, so he's in the prime of his career. we can't trade three starters, for one person, for a one year rental. it was different for Chapman, because we only traded prospects. if we can't trade then extend Machado to keep him for four or five years, don't do it.