Well that is 4 of the 9 arbitration eligibles: Knapp, Torreyes, Herrera, and Jankowski.
Left are Hoskins, Eflin, Alvarado, Dominguez, and Quinn. I think this means they are keeping Quinn. I think the roster is going to be pretty thin this winter and Quinn at $700K is a good risk if they know his rehab is going well. Do we really think that left-handed reliever they just claimed is potentially more valuable than Quinn?
This could change if they sign a major center fielder and there is no path to playing time and less need for a defensive OF reserve, but the real cost of Quinn is the roster spot over the winter (they could always release him in Spring Training too).