2) Sean Reid-Foley
Sean Reid-Foley is the only member of the Steven Matz trade still with his respective team, but that might not last for very long. The right-hander has had short stints for the Mets in each of the last three seasons but Tommy John Surgery limited his action substantially, and his 4.93 ERA in 27 Mets appearances makes him very expendable.
Reid-Foley has some value as a long reliever, but again, the Mets appear set in that regard with Tonkin and several other starting pitchers who can work out of the bullpen.
While Garrett likely has no path to the Mets Opening Day roster, Reid-Foley is a player who is out of options. If the Mets believe he's worth keeping around he's going to make the team, but the problem is, he's shown no reason to be prioritized over some of the other relievers the team just brought in who also don't have options.
The 28-year-old is another example of a reliever who will presumably clear waivers if he were to get DFA'd. He's also another example of a player the Mets wouldn't exactly miss if he didn't clear waivers.