We already have a premium closer. It would be silly to add Jensen or Chapman.
Ziegler has already stated that he's going back to AZ due to family reasons.
The point I'm trying to make is that it's really hard to split $13M into 2 pitchers that are better or more versatile than Buchholz. You could get one guy that's better and add a Matt Albers, but people would still complain "why'd we bring in Fat Albers again?"