Well, the field players we could lose through Free Agency are Young, Davis, Moreland and Nunez. i think Young and Davis are gone. Moreland is a decent player both in the field and with the bat, but we are looking for an impact player at that position, so he is probably not coming back. Word is out that we will probably try to retain Nunez, but we don't have full time position for him to fill so he probably will go where that is possible. Too bad, since Pedey is likely a 90 game a year guy going forward and he could probably get some time at SS and DH, so he would have a lot of opportunity and he is getting older so might be best when used with some down time available.
So it does look like we will go in the 1st base direction. How we accomplish that remains to be seen. I don't see anyone waiting in the wings in the minors who is ready to provide what we need so it is a FA, a move of a player and a trade or FA to fill whatever position becomes open or we try to work a trade, but what we have to offer other than one of our young regular players would probably not interest a club. Moon hasn't identified any first base prospects that stand out. I don't think bringing in just a DH for next year makes sense based on Hanley's contract and limitations and a switch to going after a 3rd baseman probably should await the battle for Machado.
The other aspect of this is whether we can get some of our young players we want long term to agree to extension contracts. Clearly Betts is one of those. Possibly JBJ and/or Bogaerts also fit that. The others are so young that no action at this point is realistic or required. Depending on how much money we want to commit in that direction and to enhance the pitching staff, there will be some outside number we will want to pay for a big bat.
Otherwise, this whole situation is complicated and it is in DD's lap to come up with some sort of compromise solution.