A lone star proposal

Here is a thought.  Why not Acquire Gibson and someone like John King to give us another reliever.  That would give us Pitching to see if we can get back into the race this year and allow us to keep our core to compete next year too.  Sometimes we don't need to trade the core and rebuild.  but what would we need to give up?  Gibson is not only a solid pitcher we are familiar with but a cheap one too as he makes only 7.66 million next year on a front loaded contract.  I am thinking a package around a few prospects maybe Rooker and Cole Sands and a low level prospect for example.  Rooker isn't getting chances in Minnesota and seems redundant and we have other hitting prospects like Sabato on the way.  Giving up Cole hurts but give to get.... maybe there is a better package what say you.