Re-tooling the St. Louis Cardinals Roster for 2020

Trade #3: St. Louis Cardinals and San Diego Padres
Cardinals get: Ryan Weathers, Osvaldo Hernandez, and Gabriel Arias
Padres get: Matt Carpenter, Michael Wacha, Dominic Leone, and Tyler Webb
The Padres have been a pleasant surprise thus far in 2019. However, they could use a veteran pitcher to help stabilize a rotation of youngsters. Enter Wacha. While inconsistent, Wacha has shown flashes of the pitcher that set St. Louis buzzing in his rookie year of 2013.
As recently as last year, Wacha recorded a 3.20 ERA in 15 starts. Add in the help he will receive from Petco Park, Wacha could really hold value for a young Padres team. Carpenter represents a left-handed corner-infield power bat that would complement a predominantly right-handed offense. Not to mention, Carpenter has played second base in the past, a spot currently manned by the aging Ian Kinsler. Leone and Webb would add depth to a mediocre bullpen.
Weathers (San Diego #6, MLB #72), a high-floor, well-rounded lefty, has stuff that won’t blow hitters away but will allow him to become a useful, dependable starter. His high-spin fastball sits in the low 90s with deceptive run.
Also possessing a similarly effective changeup and curveball, he is capable of turning into a Jake Westbrook-esque major-league arm. Hernandez (San Diego #23), who has had recent success in rookie-level and high-A ball, profiles as a farther-down-the-road, similar style arm to Weathers. Arias (San Diego #20) is a slick-fielding shortstop with some potential in his bat currently in high-A.