By Alek Arend The New York Mets aren’t messing around. On Saturday, the ballclub acquired veteran righty Chris Bassitt in a trade with the Oakland A’s, per ESPN’s Jeff Passan. He joins a rotation that already features Jacob deGrom and Max Scherzer. Watch out, NL East. Saturday’s Mets, A’s trade has the entire baseball world talking: “#Mets not going down quietly, having a very aggressive off-season and get another strong starting pitcher,” one fan said. “The Mets easily won this trade as the Mets needed another starter. The Starting Pitcher Rotation is now complete. Great trade by @StevenACohe…