To me, the only real roster issue is concerning Abad and Hembree's lack of options. Since Abad has just one year of team control, and his arb cost is estimated at $2M, trading or cutting him would not be a huge loss. I mean, we traded Pat freakin' Light for him last summer. We can trade for someone like him again, if needed. I can see us trading Abad near the end of ST'ing for a RP'er with options, if a roster crunch materializes.
Assuming no injuries at all, which is highly unlikely, so all this roster crunch debate would go down the drain the second one or two pitchers go on the DL, here's how I see it. Smith will not be on the opening day roster, so that prolongs one decision.
Locks: Kimbrel & Thornburg
Near locks: [Pom or Wright], Ross 2 options, Kelly 1, Barnes 2
That leaves room for one guy out of... (options remaining)
In order of skill level, in my opinion:
Hembree 0
Abad 0
Scott 3
Elias 1
Workman 2
Martin 3
Johnson 1/Owens 2
N Ramirez 1
Ysla 3
I know it's the time of year with not much to talk about, but is keeping Abad really all that important?
I could see a benefit of trading him, and adding $2M to out spending budget as worth more than he is regardless of a "roster crunch".
Someone will get hurt. If not, someone can go on the phantom DL.
The real roster crunch may come when Smith is ready, but again, someone will be hurt by then.