Now that David Robertson has moved on, the Yankees still have room in the bullpen for another late-inning reliever. Dellin Betances, Andrew Miller, Shawn Kelley, Justin Wilson, Adam Warren, and Esmil Rogers are already pencilled in, but if they decide to leave the rotation as is, they'll need to strengthen their corps of relievers to compensate. While not a serious option for high-leverage innings, Jason Grilli could have been a useful middle reliever, however, the Yankees are saying no.
As was previously reported, the Yankees were discussing their level of interest in Grilli last month even before a decision on Miller or Robertson was reached. After those exploratory talks proved to be the wrong way to go, Grilli's agent Gary Sheffield–yes, that Gary Sheffield–was told ‘not at the moment,' in regards to whether or not New York saw his client as a fit. Sheffield still believes that Grilli's ability to pitch in multiple situations make him useful to the Yankees, but at this point it doesn't look like they agree. Maybe something could change, but if he has offers from other teams, as Sheffield indicates, then they'll likely focus elsewhere.
The right-handed reliever pitched to a 4.00 ERA and 3.37 FIP with the Pirates during a season that saw him lose his closer job to Mark Melancon and then was shipped off to the Angels in a deal that sent the equally disastrous Ernesto Frieri to Pittsburgh. He wasn't the same pitcher he was during his incredible, age-defying 2012 and 2013 seasons, and at 38 years old, he's likely not finding that magic again.
With Grilli now out of the picture and Sergio Romo re-signing with the Giants, if the Yankees want to bring in a free agent closer to replace Robertson they'll have to look into Casey Janssen, Francisco Rodriguez or Rafael Soriano. None of those options seem likely, so they might look internally instead and give Tyler Webb, Nick Rumbelow, and Jacob Lindgren a chance in spring training.