Never thought a Pohlad would sign off on a deal like this and I'm pleased it finally happened.
Sure, it helps now. Rocco could literally throw names in a hat, pull out a random lineup every day and win over 90 games. And that's with the rotation staffed as currently constituted.
In order to have a significantly improved shot at postseason success, though, they're still going to need at least one more top of the rotation SP. But what this addition should do is buy time and provide leverage to the FO in those efforts.
The FO is no longer under extreme pressure to add that top SP before Opening Day. Worst case scenario, they start 2020 with some questions at the bottom of the rotation and try to bludgeon their way to a strong first-half start.
Any time between now and July, they can strike on a trade for a top SP without being held hostage by potential trade partners who try to fleece them on prospect returns.
Maybe a Dobnak/Thorpe/Smeltzer catches fire. Maybe Bailey/Hill turn out to be great. Maybe Odorizzi/Pineda find a way to even improve on their 2019 performances. Who knows?
If not, you look around at which SPs are actually having outstanding seasons for non-contenders (not just guessing or projecting who might do so) and make a deal.
You also are making an announcement to future FAs (and their agents) that you are no longer just that team in flyover country that talks about signing top stars. You've finally actually done it. Which communicates that you're a player in the game to be taken seriously in the future.
There's seriously no downside to this deal at all so long as none of your offensive weapons have some sort of premature season-ending catastrophe occur early on.