Go look at the Yankees and the Athletics, the 2 teams that are going to take the AL Wild Card this year, and ask yourself if your roster comes anywhere close to measuring up to them. Severino, Judge, Torres, Stanton, Chapman, and $50 million+ to play with this offseason, and they're a wild card team. Really, you think you're going to sneak into a wild card spot in this league with Moustakas and Cargo? Not with these teams.
If you're going to sign someone, fine. Clearly we have to sign 2 starting pitchers minimum, we simply don't have the horses right now to even field a roster. But don't even think about the Wild Card while doing it, think about the holes you have and flipping guys only. If some magic happens and Moncada outplays Trout next year, then great, but you can't make business decisions where a key part of it is "and then a miracle occurs".