As things stand right now, I think we'll see something like:
C - Jansen
1B - Smoak
2B - Bichette
3B - Guerrero
SS - Galvis
CF - ???
LF - Biggio
RF - Grichuk
DH - Tellez
Bench - Maile or McGuire, Gurriel, Alford
SP - Stroman
SP - ???
SP - Reid-Foley
SP - Thornton
SP - Shoemaker
Pen: Biagini, Luciano, Pannone, Mayza, Tice, Perez, ???
In late 2020 I think we'll see Murphy, Zeuch, and Pearson, two of which enter the rotation for Reid-Foley and Shoemaker (assuming Reid-Foley doesn't get his walks under control).
That basically leaves us wanting one big bat (preferably a good CF), and one ace or #2 SP. A second good OF bat that pushes Biggio to 2nd and Bichette to SS might be helpful too. Considering where our finances will be, that's certainly within the realm of possibilities.