It's hard to grade the long-term effects of a trade strategy when they change course on their strategy in the following offseason. But one of the selling points from their myriad of totally-not-AI-generated open letters in the wake of The Purge last trade deadline was impact in the short-term as well as the long-term expected from the pieces they received.
In terms of effect on the 2026 season, two trades made them definitively worse (Duran/Varland), one made them better (Jax), and the Correa trade can be scored in a number of different ways depending on your perspective.
On the one hand, $30MM spent on an injured player would be quite the millstone around their neck this year. On the other hand, since the player they received in trade was arguably literally the least valuable piece in the entire Astros organization at the time, all the value has to come from reinvesting the savings. And on a net basis, they're still not spending to that threshold even after the trade deadline increases to payroll. They're still more than $20MM below their pre-2025-deadline payroll level, so you could say the cost savings from the trade still haven't touched the current roster (2025 opening day payroll $143MM less current payroll of $113MM is $29MM). It may (read: it better) get reinvested over the rest of the life of the contract, but so far it hasn't. To be clear, I'm not saying they shouldn't have gotten off the Correa train, or that it won't pay off down the line. I'm just suggesting that is hasn't really done anything for them this year.
I suppose you could also view the Paddack/Dobnak as a negative impact on this season as he has proven to be quite the bugaboo for the Twins when they've had to face him, but that's pushing it, especially since he has done so for a team other than the one that acquired him