Why the sadness?. The major issue in this proposed trade come from Joe Kelly. After watching how he's been developed & how he approaches his game, you can see that he has a major league arm, commands the strike zone and will contribute, but, not as a starter. When you evaluate him for his stuff, his secondary offerings (after his sinking fastball) are mediocre / average. He is much more suited to becoming an RP with his ceiling being a back of the pen primary set up man on a good team/veteran team or a closer.
He should not be a starter.. If the choice was Lance Lynn, then no question about it.. he'd be a fine choice and projects as a middle of the rotation starter with a limited, but, impressive ceiling. There would be no issues with Lance Lynn as one of the players involved in this trade....
Now, onto Tyrell Jenkins.. First off, he can and should be a starter, however, he won't be ready to contribute at the ML level for quite some time. He's too far away from being relevant to be considered for a trade. At present, because he is SOOO raw, he could only be considered a "throw in". The Cardinals would NEVER throw a guy like this into a trade (at least I don't think they would, and, tbh, they shouldn't).. Jenkins has too much upside to be tossed away like that.. The biggest issue with Jenkins is the amount of time it's going to take to get him ready.. For this reason, he should be excluded..
Matt Adams is a perfect fit for what the Indians want and who the Cardinals are inclined to move in a trade. In short, he'd be a welcome addition in trade if the other part(s) were amenable to both clubs..
So, your trade wouldn't work if Tyrell Jenkins was included. Not because Jenkins isn't a talent that is needed/desired, he's just too much of a risk for the Indians to take on..and has too much upside for the Cardinals to include. Someone else, or, a change to the trade is warranted..
Onto the "purposed" trade (yeah, IDK what that word is, either): The trade proposed with Vinnie Pestano and Fancisco Lindor along with Asdrubal offered the Cards with what has been stated by Moz:
"...we are looking for a solution to the SS position for 2013 and several years following...."
The addition of Asdrubal Cabrera cover the 2013 and 2014 season allowing Lindor the time needed to be readied for MLB.. He could then be a part of the keystone combination of Lindor to Wong. That kind of DP combination is almost worth the price of admission.. It would be sort of like Ozzie Smith and Tommy Herr.. or Omar Vizquel and Robbie Alomar.. Francisco Lindor would cover any time subsequent to then for the Cardinals and give them, essentially, 8 years, perhaps more, control w/ an All Star SS and one of the best SS prospects in MiLB not named Profar (who is unavailable).
-Vinnie Pestano is considered one of the best if not THEE best set up pitchers in the American League. He's young, under control and could become the Cardinals' Chris Perez, a "lights out" "Game Over" shutdown closer. Just like the indians got from the Cardinals (along with Jess Todd) a few years back. This would be a kind of pay back..
BTW.. for those that think an elite SS is just as easy to find, develop and be successful in baseball as a corner OF'er like Oscar Taveras.. You're kidding yourself.. Open up your eyes.. smell the coffee..