The ‘roller coaster’ Brett Baty doesn’t want to ride is at a Mets crossroads

PORT ST. LUCIE — As inexact science goes, ranking prospects makes weather forecasting look infallible. Yet, simply making it into a top 100 list from, say, Baseball America, MLB.com or Baseball Prospectus tends to sanctify a prospect despite lots of history that screams to use these rankings judiciously as guideposts, not bibles. One of my…