Or Wheeler. Makes a lot more sense to trade Wheeler at this point.
No, the Mets are going ALL IN because they are playing EXTREMELY well. Here are the 7 teams competing for 2 WC spots:
Cubs or Cardinals (one will likely win the division)
Brewers
Phillies
Giants
Mets
Diamondbacks
Nats
In order for the Nats to to have a reasonable chance, Rizzo needs to trade for TWO established bullpen arms. Alternately, he can trade for one established bullpen arm and one established starting pitcher. Nothing less will suffice. If he cannot accomplish this monumental feat, then objectively it makes sense to SELL, SELL, SELL.