I think his effort, last deadline, was almost at the level needed. Many of us wanted him to sell, so one could argue he did more than he should/could have done.
The fact that Garcia, Sims and Paxton failed does not make Brez look any better, but he did try, and he did get Jansen. This year, we had a better chance at making the playoffs and going further, and he did less. I'm not arguing Brez did well at the deadline- I just don't tend to choose one of many areas someone does not do well at. (Plus, maybe M & M do better than expected- just as the pitchers we got last summer did worse.)
I think Brez is going about things the right way, in the overall view. Building depth and quality during the winter is the best strategy. Continually grossly overpaying every deadline, as you seem to suggest is a better strategy, is not a good philosophy, IMO. Are there time you need to throw caution to the wind and go against your overall view? Probably, yes, and I do wish Brez had done more. I'm choosing not to hard on it and talk about little else but that one area of his body of work.
He built up a staff that quite honestly should not have needed a deadline deal. He overpaid but did not grossly overpay, this past winter to do just that. The Buehler deal does look like a gross overpay, now, but the Dodgers did offer him the QO. Chapman & Wilson were steals. Bregman was worth it.
He's built up a solid everyday player group of players that are young, mostly inexpensive and under team control for 3, 4, 5 or more years, except for Bregman and Refsnyder. The farm is solid and now has hopes that pitchers will start falling from the trees.
I agree that obtaining a #2, like Ryan would have made us the AL favorites, and that is no small thing to ignore or sweep under the rug, just because Brez did well, up to the deadline, but GM need to balance the now with the long game. If he fails to land a solid #2, this winter, I will be as critical as you are in this area. We don't know exactly what MIN wanted. If it was Duran or Abreu plus Tolle, I'm not going to blame Brez for saying no. I MIGHT have said yes, butwith extreme reservations. Even if I heard they insisted on Duran or Abreu plus Arias and Sandlin, I would not roast him for saying no, despite me thinking it was a clear yes offer.
You do mention some good things, but it always seems like it's an aside or minimal afterthought. The fact is we are better than we have been since at least 2021 and more leikly 2018, and our extended future looks way better than it did in 2018, when the pending "cliff" was being heavily debated.