Maton would be this year's Boxberger. He wouldn't necessarily work out that poorly, but he's a veteran 7th inning guy who just doesn't have the fastball for anything more.
I think, despite how rough the bullpen was at the very end of the year, a depth signing like that doesn't make sense for this year's team, ss IMO we'rein need of qualityover quantity currently.
We've currently got Alzolay, Merryweather, Smyly absolutely locked into spots. Leiter, Cuas, and a long reliever each seem likely. You'd probably also like a spot for Palencia and Little to compete for? So that only leaves one spot to fill externally, and you'd ideally like a legit late inning option.
You could free up a second or third spot by dumping Leiter or only carrying one of Cuas/Little/Palencia to open the year, but again I'd hate to do that just for someone of Maton's ilk.
I think some folks like Al saw the bullpen in September and thought "we need a bunch of reinforcements!" but IMO we're in a situation where one $10M arm would make a lot more impact than two $5M arms.