I know it's always tempting to be like "Pirates could have done it", but Ortiz is wildly better than Wesneski for starters, and we have plenty of prospects as good or better than Smith.
It was never gonna happen and Paredes is a solid supplementary type player on a roster, but even though that's somewhat chunky for a rental (though IMO Chicago probably intends to re-sign him -- either they shove Bellinger off now and get it done this offseason, or they see how things shake out and move Bellinger mid-season), that's the kind of thing you have to try if you aren't gonna bother signing any FAs.