Unlikely to get prospects in dealing Tulowitzki or Martin.  Just salary dumps, and you'd probably hafta pay a good chunk of the $, as SD did last season in getting rid of Upton.  Might get a token back in return, some cover, something you could use to placate what's probably going to be an irate fan base.

Might get something usable down the road back for Bautista, but hardly 1 of another team's top prospects.

Estrada?  Maybe, see how he pitches between now and the deadline.

Happ?  Yes, definitely, he's the 1 with value, at least how it reads now.

Most bang for your buck is Donaldson, his value will never be higher.  All depends on what this management decides to do, how they want to play it.  I think they are too timid to do what is becoming obvious has to be done, deer in the headlights analogy works here.

Hope I'm wrong on how I see Shapir/Atkins....