MLB Pipeline contributors Jim Callis, Jonathan Mayo, and Mike Rosenbaum just published their rankings of all MLB 2020 farm systems for 2020. Their top-rated farm system is the Tampa Bay Rays, which has six prospects in the top 100, while the Milwaukee Brewers farm system finished at the bottom with no prospects in the top 100. In their piece, the St. Louis Cardinals farm system came in at 18, sandwiched between the Kansas City Royals (17) and the Philadelphia Phillies (19).
However, Callis, Mayo, and Rosenbaum’s rating seems to based on what they don’t know about the Cardinal farm system instead of what they know.