It's possible that Dombrowski makes a big splash signing, but I really don't know who that would be. Bauer's name comes up quite a bit, but the guy is almost 30, and we should have learned our lesson about signing pitchers over 30 to long contracts. Even with opt outs, he will only opt out if he's pitching well.
The FO wants to find young, cost controlled pitching. They aren't finding that in free agency.
If they wanted to make a big splash with a position player, then why wouldn't they just re-sign Mookie? Granted, they can find a player who won't require the number of years that re-signing Mookie did.