I think they took the responsible route. The roster is full of guys hovering around or above 100 wRC+. Only Davis (88), Taylor (92), Severino (92), and Narvaez (94) are below 100. That doesn't leave any glaring holes to improve on cheaply. The payroll is likely on the verge of being maxed out and management probably didn't want to mortgage the future for an "upgrade" anywhere that any of our current guys could outproduce over a short period of time in the playoffs anyways.
We've been hovering around the 5% mark for WS Victory odds, 5th highest in the NL, and are close to a shoe-in for the playoffs. Let's say they went all in at the trade deadline and traded for Soto, Reynolds and Bell, What would that increase their WS Victory odds to? 10%? The Dodgers have the highest odds at 15.7%. So even if you trade away the farm, you probably will still not win the WS somewhere between 5 out of 6 to 9 out of 10 times.
The biggest factor in winning the World Series is getting into the playoffs, not necessarily being the best team, and having affordable, controllable talent come through the minors is the only way we can sustain this run of playoff appearances we've been on.
We may not be the best team in contention and we may go into the playoffs as an underdog, but we are a good team and we're in a solid position to make the playoffs for the 5th year in a row. So let's ride this roster as far as it can go and see where it takes us! ?