Every org's farm system, ranked

Systems are ranked by expected MLB — the sum of every prospect's modelled chance of reaching the majors. It reads as "how many big leaguers is this system worth," and it leads because it is the one signal modelled for both hitters and pitchers. Top 5 sums only the system's best 5, so a farm padded with lottery tickets doesn't quietly outrank a top-heavy one. Above-avg sums each prospect's chance of becoming an above-average MLB hitter — hitters only, so don't compare it across systems with different bat/arm mixes.