Third baseman Nick Castellanos is the consensus No. 1 prospect in the Tigers organization, and he gets high marks from Keith Law of ESPN. But Law doesn’t think much of the Tigers’ other top prospects. On Wednesday he revealed a top-10 list of prospects for every American League team. Castellanos, ranked No. 32 overall by Law, was followed on the Tiger list by outfielder Daniel Fields and left-hander Robbie Ray, acquired in the Doug Fister deal. “Nick Castellanos is going to be a very good big leaguer, but after him, there's at least an argument that they don't have a future average prospect in the system -- a pessimistic argument, to be sure, but not a wildly unreasonable one,” Law says. “The Tigers have used their system aggressively to bolster the big league club, mostly via trades, and have lost some first-round picks to sign free agents, making it harder for the amateur scouting staff to keep pace.” Here are the top 10 prospects in the Tigers organization, according to Law: 1. Nick Castellanos, 3B 2. Daniel Fields, OF 3. Robbie Ray, LHP 4. Jonathan Crawford, RHP 5. Jake Thompson, RHP 6. James McCann, C 7. Tyler Collins, OF 8. Corey Knebel, RHP 9. Endrys Briceno, RHP 10. Eugenio Suarez, SS