I generally agree, I usually look to do a 2 or 3-for-1. Asdrubal was downright unplayable for most of the time I owned him, he was an 0-4 machine and really sunk me down the stretch with a ton of bad ABs. I really like Desmond -- perhaps too much -- and I think he can be a 25/25 guy. I really didn't consider the age difference between the two since Desmond is extremely athletic and Asdrubal is soft-bodied; I think it's quite reasonable to assume that Desmond will age better, although I'm primarily concerned with the next 2 years and they're both in their prime. Sammy isn't banking on Asdrubal really, he's just a stop-gap to Lindor (just like in real life). Frankly, I never really believed in Asdrubal. I called him a fluke in 2011 and considered it a career year. I acquired him as a buy-low opportunity and because I was running Scutaro out at SS, but I'm happy to upgrade what was one of my weakest positions.
It does hurt to give up Sonny Gray, I can't say a bad thing about him. He surpassed all expectations and I turned a huge profit on his draft position. I think it *may* have been a sell-high opportunity on him, but I also wouldn't be surprised if he becomes a steady SP2/3, I love his FB/hammer combo. The insurance against giving him up was Crick, who has huge K upside. It's funny how opinions can change so quickly -- Crick was a 3rd round pick in the spring MiLB draft and Sonny was passed over altogether and even made it to the 3rd round of our SECOND MiLB draft.
I guess I'm in the camp that doesn't really believe Rasmus turned a corner, I think he'll always be streaky and K-prone, although he's a pretty safe bet for 20 HR and you could do a lot worse for a CF. Having Gardner/Bourn/Buxton made him somewhat expendable in my eyes.
The other aspect of this trade is that it netted me two more roster spots, so now I can keep Grant Balfour and Huston Street rather than sending them off into the waiver draft. Generally, I find that if opinions are divided on a deal, it's probably a fair one.