Earlier today the Pittsburgh Pirates made their first cuts of the Spring, which included sending Jameson Taillon to minor league camp. Taillon is the top pitching prospect in the system, and is expected to arrive in Pittsburgh by mid-season. I say "mid-season" not because he needs about two and a half months of Triple-A experience to get ready for the big leagues. I say "mid-season" because there are strong business reasons to keep him in the minors until mid-June or later.

All around the league, top prospects arrive in the majors in mid-June or later to make their debut. It's not a coincidence why this happens for probably 90% of the top prospects in the league. There are probably legitimate things they need to work on in Triple-A, but the main reason prospects aren't called up before ...

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