I've been thinking a lot about this. I like the BTV site, but I think it is going to get harder and harder to pin down value for players. And for someone looking for trade comps, going back more than a year or two is probably about the extent of reasonable comps. Why?
- the ascendency of Trackman, Statcast, and other analytical devices has allowed teams to think way differently about player value
- because of the above, valued skill sets seem to change more quickly than ever
- baseball salaries have been increasing steeply
- A hot prospect or two (Vidal Brujan, Wander Franco) being blocked by an otherwise valuable player (Willy Adames) is a hard-to-predict intangible