Yeah it's sort of a pessimistic all-around situation:
1) As IE says, hypothetically getting a solid bat in exchange for a modest contract like Keller could be fine if we thought the pitching depth would keep rolling, but trading Ortiz already puts pressure on the situation. Trading Keller too would make it worse, even if we just blindly assumed we could sign a FA and get 150 decent enough innings.
2) Trading Jones after having traded Ortiz also doesn't make a ton of sense for similar reasons. Crochet netting a somewhat middling, usual quantity-ish over quality type deal is also a worrying development.
3) Most generally, it seems like there is recognition that this team needs multiple bats to compete, and the underlying implication appears to be that the budget is already pretty maxed out and so in order to do anything, more "breathing room" is necessary.
But if so, it's one step forward and two steps back. This is true even if we somehow used the money for a shocker like Santander, because as much as that would seriously address the major need, a rotation without Ortiz and Keller would be a weakness. It's not realistic at all to expect Chandler to just easily adjust to MLB and be very reliable right away. Something like Jones' season feels like a more optimistic first year for a young pitcher with great stuff, even if it's very arguable that he's a better prospect with a higher ceiling.
We are already currently pretty f***ed, and if this is the kind of mess we're in to try and find improvement, then I just don't see any other conclusion but that we're f***ed twice over.